Terms and Conditions

1. Introduction and Your Account

Please read these Terms and Conditions (“Terms”) carefully as they contain the legal terms and conditions that you (“you”) agree to when you access and use this website (the “Website”), and/or purchase from nth Solutions, LLC. By placing an order you accept these Terms and you acknowledge these Terms constitute a binding agreement between you and nth Solutions, LLC. In addition, you agree to faithfully comply with all rules and requirements that appear during your order process on the Website.

You are responsible for maintaining the confidentiality of your account and password and for restricting access to your computer to prevent unauthorized access to your account. You agree to accept responsibility for all activities that occur under your account or password. You should take all necessary steps to ensure that the password is kept confidential and secure and should inform us immediately if you have any reason to believe that your password has become known to anyone else, or if the password is being, or is likely to be, used in an unauthorized manner. Please ensure that the details you provide us with are correct and complete and inform us immediately of any changes to the information that you provided when you registered.

If you wish to purchase any products or services through our site, we will ask you to supply certain information applicable to your purchase, including, without limitation, payment and other information. All information that you provide to us or our third party payment processor must be accurate, current, and complete. You represent and warrant that you have the legal right to use any credit card(s) or other payment means used to initiate any transaction. You agree to pay all charges incurred by you or any users of your account and credit card (or other applicable payment mechanism) at the prices in effect when such charges are incurred. You will also be responsible for paying any applicable taxes relating to your purchases. Verification of information applicable to a purchase may be required prior to our acceptance of any order.

By placing an order, you represent that the products ordered will be used only in a lawful manner.

2. Pricing, Products and Policies

Pricing, retail policies and shipping applicable to the purchase of products are as set forth on the Website, and are incorporated into these Terms by reference. All costs and fees are quoted in U.S. dollars. We may in our sole discretion add, delete or change some or all of the prices of our products and services at any time without notice.

See Returns Policy and Shipping Policy in addendum at end of document.

3. Suspension and Termination of Access

You agree that nth Solutions, LLC may at any time without notice:

A. Refuse to accept your orders for service;
B. Move or suspend any part of the service; or
C. Refuse to fulfill any order, or any part of any order or terminate your account and delete any content stored in your account if, in nth Solutions, LLC ‘s sole discretion, you fail to comply with any of these Terms or if a competent regulatory authority requires nth Solutions, LLC to do so.

nth Solutions, LLC will not be liable to you or any third party for any suspension or termination of your access to the Website or failure to produce any product, except that nth Solutions, LLC will refund to you any amounts paid by you for products not produced.
4. Age and Geographical Requirements

You must be at least 18 years of age to use this website. In addition, nth Solutions, LLC only accepts orders that are shipped to locations within the United States of America and its territories.

5. Privacy

nth Solutions, LLC has a firm commitment to safeguarding your privacy. Please review nth Solutions, LLC Privacy Policy in addendum at end of document. The terms of nth Solutions, LLC’s Privacy Policy are incorporated into, and considered part of, these Terms.

6. Compliance with Law

You agree that you will use the Website and any products ordered thereon at all times in accordance with all applicable United States federal, state and local laws, statutes, regulations, and ordinances and will not take any action that harms or violates the rights of any person or entity.

7. Indemnity

You agree to indemnify and hold nth Solutions, LLC and its subsidiaries, affiliates, officers, shareholders, employees, agents, printers, contractors, vendors, co-branders, suppliers, internet service providers, and partners harmless from any loss, cost, claim, demand or other harm of any kind, including reasonable attorneys’ fees, due to or arising out of your use of the Website, your default under any provision in these Terms, your violation of any laws and your violation of any rights of another person.

8. Third Party Links

This Website may provide links to third-party sites that might be of interest to you. We have no control over the content or availability of the contents of these sites. It is your responsibility to become familiar with each site’s privacy and other policies and terms of service, and to contact that site’s Webmaster or site administrator with any concerns.

9. Proprietary Rights

This Website, the nth Solutions, LLC services, and all software, systems and processes used in connection with the Website and service (“Software”) contain proprietary and confidential information that is protected by applicable intellectual property and other laws and are covered by and/or for use with U.S. Patents.

10. LIMITED WARRANTY

WARRANTIES AND DISCLAIMER: MANUFACTURER WARRANTS THAT LEAKALERTOR® (“THE PRODUCTS”) ARE SOLD FREE OF MANUFACTURING DEFECTS FOR NINETY (90) DAYS. MANUFACTURER’S PRODUCTS LIABILITY SHALL BE LIMITED SOLELY TO THE REPLACEMENT OF THE PRODUCTS FOR A PERIOD OF NINETY (90) DAYS AFTER PURCHASE DATE WITH PROOF OF PURCHASE DATE. NO OTHER WARRANTY, EXPRESSED OR IMPLIED, SHALL APPLY, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, AND ANY SUCH IMPLIED WARRANTIES ARE EXPRESSLY DISCLAIMED. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND NINETY (90) DAYS FROM THE DATE OF PURCHASE. MANUFACTURER SHALL NOT BE RESPONSIBLE OR LIABLE FOR INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, INCLUDING BUT NOT LIMITED TO COST INCURRED FOR THE USE OF THE PRODUCTS, LOSS OF TIME, LOSS OF PROFITS, INCONVENIENCE, OR OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES WITH RESPECT TO PERSONS, BUSINESS OR PROPERTY, WHETHER OR NOT SUCH CLAIMS ARE AS A RESULT OF BREACH OF WARRANTY. THIS WARRANTY DOES NOT EXTEND TO ANY DEFECT OR PROBLEM CAUSED BY ACTS OR OMISSIONS OF YOU OR OTHERS, IMPROPER USE, TAMPERING, ACCIDENTS, ALTERATIONS, OR ORDINARY WEAR AND TEAR BEYOND NINETY (90) DAYS.
11. Disclaimer and Limitation of Liability

This Website is provided by nth Solutions, LLC on an “as is” and “as available” basis. nth Solutions, LLC makes no representations or warranties of any kind, express or implied, as to the operation of this Website or the information, content, materials, or products included on this Website. It is expressly agreed by you that your use of this Website is at your sole risk.

nth Solutions, LLC disclaims all warranties, express or implied, including, but not limited to, implied warranties of salability and fitness for purpose to the fullest extent permissible by applicable law. nth Solutions, LLC does not warrant that this Website, its servers, or e-mail by us are free of viruses or other harmful components.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, UNDER NO CIRCUMSTANCES SHALL NTH SOLUTIONS, LLC BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES, INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFITS, USE, DATA OR OTHER INTANGIBLES, EVEN IF NTH SOLUTIONS, LLC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, THAT RESULT FROM THE USE OR THE INABILITY TO USE THE WEBSITE OR SERVICES, FROM ANY CHANGES TO THIS WEBSITE OR ITS SERVICES, OR FROM UNAUTHORIZED ACCESS TO OR ALTERATION OF YOUR TRANSMISSIONS OR DATA. SOME JURISDICTIONS DO NOT ALLOW THE LIMITATION OR EXCLUSION OF INCIDENTAL, CONSEQUENTIAL OR OTHER TYPES OF DAMAGES, SO SOME OF THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

12. Amendment of the Terms

nth Solutions, LLC reserves the right to amend these Terms from time to time at their sole and absolute discretion. If you continue to use the Website and the services offered therein after any such changes, you will be deemed to have accepted those changes.

13. GOVERNING LAW AND JURISDICTION

These Terms and the other policies of the Website shall be governed by and interpreted in accordance with the laws of the United States and the State of Pennsylvania. Disputes arising in connection with these terms shall be subject to the non-exclusive jurisdiction of the federal and state courts located in the State of Pennsylvania.

These General Terms and Conditions of Sale are subject to updates and amendments from time to time. The version published on the Website is the version currently in force. The purchase of the Products is subject to the General Terms and Conditions of Sale which are placed on the Website on the date of your submission of the order form.

The effective date of these General Terms and Conditions of sale is 17th April 2015.

17. General Information.

No agency, partnership, joint venture, employee-employer or franchisor-franchisee relationship is intended or created by these Terms. We may assign our rights and responsibilities hereunder without notice to you. The failure of a party to exercise or enforce any right or provision of these Terms will not constitute a waiver of the right or provision. Our failure to act with respect to a breach by you or others does not waive our right to act with respect to subsequent or similar breaches.

All items purchased through nth Solutions, LLC are made pursuant to a shipment contract. This means that the risk of loss and title for such items pass to you upon our delivery to our carrier.

If any part of these Terms is held to be invalid or unenforceable, then the invalid or unenforceable provision will be deemed superseded by a valid, enforceable provision most closely matching the intent of the original provision and the remainder of the Terms will continue in effect.

These Terms constitute the entire agreement between you and us with respect to products purchased on our website, and supersede all other communications, written or oral, with regard to our products.

 

Addendum: Returns Policy

Please email your Return Merchandise Authorization (RMA) request to rma@nth-solutions.com. Please include the order confirmation number (i.e. invoice number) and the reason for return.

General Return Policy

a)     Return for refund within: 30 days

b)     Return for Replacement (Warranty Claim): 90 days

c)     Restocking fee may apply: 15% of the Final price

Rules to Follow for Your Return:

a)     You must request a return for refund within 30 days after the invoice date. No refunds are issued after 30 days.

b)     Each return MUST have an RMA number, a “Return Merchandise Authorization” number. Please write down your RMA number on the outside of the box that contains the merchandise you want to return.

c)     One RMA number can only be issued per invoice number. If you have different items from different invoices, then you need to request a different RMA number for each return.

d)     When returning the product, we strongly recommend the use of a carrier that can track packages. You are also responsible for insuring the returned item. nth Solutions, LLC will not be responsible for any shipping loss.

e)     The customer must inform nth Solutions, LLC of any order discrepancy within 7 days of the delivery date. Physical damage to the returned product will void the product’s warranty and the RMA policy.

f)      All return(s) must have the original packaging and accessories.

g)     The shipping fee is non-refundable. The buyer is always responsible for paying the shipping costs when returning a product, as well as insurance. nth Solutions, LLC will not reimburse any customer for the shipping cost of a returned product.

h)     Please allow up to 10 business days to process your return.

i)      nth Solutions, LLC reserves the right to refuse service that would void the return policy.

We suggest you read the complete return policy before you make your purchase.

Return Policy for Refunds

This only applies to products purchased via this website. nth Solutions, LLC products purchased in a store or on another website must be returned to the original place of purchase.

You must follow the “Rules to Follow for Your Return” listed above.

You may return Products sold by nth Solutions, LLC within 30 days from the invoice date for a full refund. Please include a copy of your invoice. If you don’t have the invoice, then please include a note with your order number and RMA number. Please note that all items returned for a refund must be returned in “as new” condition in the original packaging and include all accessories, blank warranty cards, UPC codes (attached), and user manuals. A 15% restocking fee may be applied to all returns for a refund if the reason for the return is due to customer error.

We cannot accept returns of certain items for a refund, including:

a)     Any item that is returned after the 30 day grace period.

b)     Any item that is not in its original condition, is physically damaged, or is missing parts.

Return Policy for Replacement (Warranty Claim)

This only applies to products purchased via this website that are within warranty. nth Solutions, LLC product purchased in a store or on another website must be returned to the original place of purchase.

Please email your Return Merchandise Authorization (RMA) request to rma@nth-solutions.com.com.

You must follow the “Rules to Follow for Your Return” listed above.

Following these steps will help ensure the Product(s) arrive at the correct destination and in good condition within a timely fashion. Please note that your failure to follow this procedure may result in the returned Product(s) being rejected upon receipt and you may forfeit your right to a Replacement.

Please note that nth Solutions, LLC reserves the right to reject any Product(s) that are not returned in accordance with the provisions set out above.

Return Shipping Cost

In order to keep our prices low and competitive we are unable to issue a refund for any return postage. You will be responsible for the cost of returning a product to nth Solutions.

Restocking Fee

A 15% restocking fee will be applied to all returns for a refund if the reason for the return is due to customer error.

Canceled Orders or Address Errors

You need to call in to cancel your order. We do not accept emails as a way of cancelling orders. For any refused package or any returns to nth Solutions, LLC due to incorrect address, action, inaction or absence of the recipient, we will refund back to your credit card with 15% restocking fee of your purchase, less any shipping charges.

Return Procedure

You must obtain a Return Merchandise Authorization (RMA) number within the return period for the products. All RMA requests must be submitted to rma@nth-solutions.com. nth Solutions, LLC will not accept returns without prior authorization or an RMA number. RMA numbers are valid for 15 days. All RMA numbers should be displayed on the outside of the box you are returning to nth Solutions, LLC. If the original order was paid with a credit card, please enter the credit card number on the RMA request form so we can credit you back the correct amount.

Customers are responsible for shipping any returned products to nth Solutions, LLC. Customers agree to pay all shipping charges and accept all risk of loss for the product being returned. The customer agrees that all returned products for refund will be 100% complete, in re-saleable condition and will include the original packaging material, manuals and other accessories provided by the manufacturer. nth Solutions, LLC will reject the entire return or may choose to impose additional charges against the customer for replacement of any missing parts or components. The same policy applies if the product has scratches, dents or excessive wear. Please allow up to 10 business days to process your returns.

All Clearance products purchased from nth Solutions, LLC will not be accepted for returns.

Order Discrepancy

If you receive damaged/incorrect or missing items in your order, please contact our Customer Service Department within 7 business days from the date of delivery.

Certain information may be required for verification:

a)     Photo of the packing envelope/box

b)     Photo of the packing list

c)     Photo of the damage/incorrect item

Customers may send the above information to RMA@nth-solutions.com. A representative will review the order and respond within 48 hours.

Unauthorized Return

All returns require a Return Merchandise Authorization (RMA) number. nth Solutions, LLC will not accept any return without the RMA number. The package will be returned at the sender’s expense.
Addendum: Shipping
A.  All shipments are UPS or USPS.

B.  F.O.B. Exton, PA via common carrier. nth Solutions, LLC accepts no responsibility for lost packages shipped without a signature guarantee; you must agree to delivery without the recipient‘s signature unless you choose to pay for delivery signature service. If you do not choose delivery signature service on a parcel a signature waiver applies to all past, present and future shipments.

 

Addendum: Privacy Policy
nth Solutions, LLC is committed to maintaining the confidentiality of our customers. We do not share, sell, or otherwise disclose information about our customers to any other party except as required to process and ship purchases. This privacy statement only applies to nth Solutions, LLC. This privacy policy describes how nth Solutions, LLC collects and uses the information you provide on our site. It also describes the choices available to you regarding our use of your personal information relating to your business and how you can access and update this information.

A. Information Collection

nth Solutions, LLC is the sole owner of the information collected on LeakAlertor.com. nth Solutions, LLC collects information from our users at several different points on our site. We use this information to fulfill your order, send you requested product or service information, respond to customer service requests, send you marketing communications, administer contests surveys or sweepstakes you may have entered, and improve the customer experience while on our site. We reserve the right to disclose information about you as required by law and when we believe that disclosure is necessary to protect our rights and/or comply with a judicial proceeding, court order, or legal process served on our site. We may purchase additional data about our customers from third party sources and combine it with the information we have already collected in order to assist us with our marketing activities.

B. Registration

In order to open an account a user must first complete the registration process. During registration a user is required to give a name and email address. We use this information to contact the user about our services even if they have not placed an order.

C. Communications from the Site

Special Offers and Updates: Established members will occasionally receive information on products, services, special deals, and a newsletter. Out of respect for the privacy of our users we present the option to not receive these types of communications. If you do not wish to receive future emails, please see the Choice/Opt-out section below.

D. Customer Service

We communicate with users on a regular basis to provide requested services. Both our production and customer service staff use email and phone information to communicate with customers about issues pertaining to their orders.

E. Social Media

Our site includes social media features such as Facebook “Like” and “Share This” buttons. These features may collect your IP address, which page you are visiting on our site, and may set a cookie to enable the feature to function properly. Social media features are either hosted by a third party or hosted directly on our site. Your interactions with these features are governed by the privacy policy of the company providing it.

F. Blog and Testimonials

Our site offers a publicly accessible blog. You should be aware that any information you provide in these areas may be read, collected, and used by others who access them.

With your consent we may post your testimonial along with your name. If you wish to update or delete your testimonial, you can contact us via email at testimonial@nth-solutions.com.

G. Cookies and Other Technologies

A cookie is a piece of data stored on the user’s computer tied to information about the user. We use persistent cookies. A persistent cookie is a small text file stored on the user’s hard drive for an extended period of time. Persistent cookies can be removed by following Internet browser help file directions. Cookies may be used by nth Solutions, LLC in the order section in order to uniquely identify users, associate user files with orders, and to enable the shopping basket. Our site cannot be used with cookies turned off.

We use clear gifs in our HTML-based emails to let us know which emails have been opened by recipients. This allows us to gauge the effectiveness of certain communications and the effectiveness of our marketing campaigns. If you would like to opt-out of these emails, please see “Choice and Opt-out.”

H. Log Files

Like most standard website servers, we use log files. This includes internet protocol (IP) addresses, browser type, internet service provider (ISP), referring/exit pages, platform type, date/time stamp, and number of clicks to analyze trends, administer the site, track users’ movement in the aggregate, and gather broad demographic information for aggregate use. This data is not linked to personally identifiable information.

I. Security

We are committed to protecting your information. Security measures are in place on this site to protect against the loss, misuse, and alteration of the information under our control. We offer industry-standard security measures available through your web browser. When you are on this site, the sensitive information you provide such as credit card and financial information is encrypted with secure socket layer (SSL) technology and scrambled en route and decoded once it reaches us. Please remember that e-mail, which is different from the encrypted sessions above, is not secure. Therefore, we ask that you do not send sensitive information such as credit card or account numbers to us via an unsecured e-mail message.

J. Information Disclosure and Your Choices

We will share your personal information with third parties only in the ways that are described in this privacy statement. We do not sell your personal information to third parties.

We use an outside shipping company to ship orders, an email service provider to submit email communications to you on our behalf, and a credit card processing company to bill users for goods and services. These companies do not retain, share, store or use personally identifiable information for any secondary purposes.

If nth Solutions, LLC should go through a business transition, such as a merger, acquisition by another company, or sale of a portion of its assets, users’ personal information will, in most instances, be part of the assets transferred. If as a result of the business transition, the users’ personally identifiable information is to be used in a manner different from that stated at the time of collection they will be given choice consistent with our notification of changes section.

K. Choice/Opt-out

Our users are given the opportunity to ‘opt-out’ of having their information used for purposes not directly related to our site at the point where we ask for information. Users who no longer wish to receive our newsletter and promotional communications may opt-out of receiving these communications by replying to unsubscribe in the subject line in the email, emailing us at remove@nth-solutions.com or by following the unsubscribe instructions within the email.

L. Links

Our site may contain links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every website that collects personally identifiable information. This privacy statement applies solely to information collected by this site.

M. Notification of Changes

If we change our privacy policy, we will post those changes to this privacy statement so our users are always aware of what information we collect, how we use it, and under what circumstances, if any, we disclose it. We will use information in accordance with the privacy policy under which the information was collected.

N. Access to Correct/Update/Deactivate

If your personal information changes, or if you no longer desire our service, you may correct, update, amend, or request that it be deleted/deactivated by accessing your nth Solutions, LLC account or by contacting us at the address listed in the Contact Information section.

We will retain your information for as long as your account is active or as needed to provide you services. We will retain and use your information as necessary to comply with our legal obligations, resolve disputes, and enforce our agreements.

O. Contact Information

If you have any questions or suggestions regarding our privacy policy, please contact us at privacyprogramoffice@ nth-solutions.com. For all other requests, please contact us at: Customer Service, nth Solutions, LLC 15 E. Uwchlan Ave, Ste 412, Exton, PA 19341.

 

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Dye Tablets

5 Reasons why dye tablets are not accurate:

The LeakAlertor takes away the frustration of high water bills, and saves you money! Unlike dye tablets, the LeakAlertor is constantly at work checking for silent leaks, wide-open flappers, and faulty fill valves. It alerts you before you leave the bathroom with a “beep” and blinking LED during the flush cycle.

1) Errors are made in using dye tablets.
Often times, dye tablets are used incorrectly. Some people have mistakenly put the tablet in the toilet bowl rather than the toilet tank…test ruined! Some have put the tablet in the tank, and flushed the toilet immediately…test ruined! Some people drop the tablet in the tank, but then walk away and forget…again, test ruined!

2) Not all toilet leaks are caught by dye tablets.
Dye tablets can only detect one type of leak – a leaking flapper – and only if it’s leaking at the time of the test. However, stuck flush valves, wide-open flappers, phantom flushes, and running toilets are all common leaks not detected by dye tablets.

3) By the time you use a dye tablet your toilet may have already been leaking for weeks, or even months.
Often times, homeowners don’t realize a toilet is leaking because they think a leak should mean there is water on the floor. However, the most common leaks occur either at the flapper, or where the tank and bowl connect. These leaks occur inside the toilet, and are almost always invisible.

4) Intermittent leaks are often missed by dye tablets.
Just because your toilet isn’t leaking at the moment of testing doesn’t mean it wasn’t leaking an hour ago, or won’t be leaking an hour from now. Also, when a flapper first begins to leak, the amount may be too small for dye tablets to detect.

5) It’s not easy to get dye tablets.
Few hardware stores actually sell them, and it’s a hassle to contact your water utility for free tablets. You can buy them on-line, but you have to pay for shipping and wait for them to arrive. Meanwhile, your toilet continues to leak, and your water bill gets even higher!

7 Reasons why the flapper/flush-valve won't close:

1)  The flapper is “stuck” to the overflow pipe.
One observable symptom: it is not bobbing or floating in the water, regardless of the water height, and appears to be partially or fully upright.

2)  The chain is tangled.
A chain link can get stuck on the metal clip or loop over the top of the lever arm. Although an improper chain length causes many of these problems, “slapping” the flush handle can also cause the chain to hang up.

3)  A clogged drain/obstructed pipe produces back pressure through the flush valve seat.
The obstruction doesn’t allow the water level inside the tank to drop low enough for the flapper to seat properly. In this instance, the flapper appears to “hover” in the water above the flush valve seat. A clogged or obstructed drain pipe is the most common reason for toilets to overflow the bowl.

4)  A “universal” replacement flapper is purchased.
When a “universal” replacement flapper is purchased, it does not seat properly on the flush valve. Flappers should be purchased according to the type of flush valve used because universal flappers can leak and/or fail to seat up to 50% of the time.

5)  The flush handle/lever is old, defective, or “sticking” to the inside of the toilet tank.
Old or defective equipment can result in the flapper being held open.

6)  The flapper hinges are weakened and/or degraded.
This allows the flapper to slide to the side and not seat properly on the flush valve. (Note: the water flow from the fill valve can also push the flapper to one side if it is above 60 PSI.)

7)  A flapper’s buoyancy doesn’t become “negative” until the tank completely evacuates.
This does not allow the flapper to seat properly. Although there are several known causes (including toilet design), the most common is a clogged or obstructed drain pipe, which creates back pressure into the tank through the flush valve.


5 Common reasons why wide-open flappers often go undetected:

1)  No one is home to hear it running.
Often times, a person will use the bathroom before they leave their home (or business). In this case, a wide-open flapper would not be detected until the person returned home and realized the problem. This could be hours, or even the following day.

2)  The bathroom is not used frequently.
A wide-open flapper in secondary bathrooms (a finished basement or guest bathroom) can go undetected for days or weeks, wasting a tremendous amount of water and resulting in a high water bill.

3)  Hearing impaired/challenged people may fail to recognize a problem exists.
People with moderate to severe hearing loss may be unable to hear the running water. People afflicted with tinnitus may be unable to distinguish the sound of the running water from their tinnitus.

4)  The sound of the toilet tank refilling is a muted hum.
The initial flush of a toilet is loud, brief, and occurs while the user is still in the bathroom. However, the refilling of the toilet is quieter, prolonged, and typically finishes after the user has left the bathroom. Therefore, the user is unaware when the flapper remains wide-open.

5)  Background noise can easily mask the sound of a wide-open flapper or flush valve.
Examples include central air conditioners and HVAC systems (while the fan is operating); ceiling and window fans; music and/or TV; etc.