backwater check valves backwater valves adapt-a-valve information ml fr4 fio valve information termex valve information straight fit backwater valves backwater valve diagram backwater valve features and specifications backwater valve history testimonials backflow prevention information helpful links backwater valve pricing frequently asked questions backwater valve specifications backwater valve installation tips backwater valve animation backwater valve videos contact us backwater valves main page backwater valves backflow prevention links

Backwater Valve Pricing

free access box (an $89.00 value) with the purchase of a backwater valveOur Mainline Combo Fullport Backwater Valves are available in ABS (pictured at right) and PVC and priced with and without Access Boxes*.

We also ship our Mainline Backwater Valves in combination with an Access Box at a reduced combo price (an $89.00 value).

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backwater valve pricing

 


adapt a valve extended

NOW AVAILABLE: Adapt-A-Valve Extendable Backwater Valves allow deep burial access in your yard with the need for manholes or expensive underground vaults. (Cap and 4" extension pipe for 3" valve or Cap and 6" extension pipe for 4" valve are not included, but available at any local home center or plumbing supply.)

Adapt-a-valve has several unique configuration features that allow it to be used in many money-saving ways.

Adapt A Valve is available in 3" PVC or ABS and 4" PVC or ABS.

backwater valve adapt-a-valve pricing

normally-open gate in top hinged positionadapta-valve always open view or gate bottom hinged viewadapt a valve in always closed position normally-closed

ML-3XA (3" ABS), ML-3XP (3" PVC), ML-4XA (4" ABS), ML-4XP (4" PVC)

adapta valve with gate extension

 

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Adapt-A-Valves

adobe acrobat pdf filesAdapt-A-Valve Brochure (Adobe Acrobat pdf)

Adapt-A-Valve Inspection Chamber

Backwater Valve Diagram
Backwater Valve Features
Back water valves information
Backflow Links
Backflow Preventers
Backwater Valve Animation
Backwater Valve Videos

Basement Drain Backing Up

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Back water valve questions

Frequently Asked Questions

adobe acrobat pdf filesFullport Backwater Valve Brochure (Adobe Acrobat pdf)

how to install your backwater valveINSTALLATION TIPS;  how to install backwater valves 

Termex Backwater Valves
Termex Backwater Valve Brochure (Adobe Acrobat pdf)

Mainline ML-FR4 Backwater Valve (Fio Valve)
adobe acrobat pdf filesML-FR4 Mainline Backwater Valve Fio Valve Brochure (Acrobat pdf)

6" Backwater Valves - Mainline STRAIGHT FIT Backwater Valves

Mainline History

backwater valve measurements and specificationsMeasurements, Specifications and IAPMO Certifications

Testimonials

Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems. SPECIAL OFFER: Mainline Backwater Valve "Combo" with Access Box ($89.00 value if purchased separately) Valves without Access Box are also available with a slight shipping discount in the price.

Protect Your Home with a Backwater Valve
from Backwater-Valve.com

telephoneAll Orders must be placed online by Credit Card,
but you may phone Greg at 330.836.9393 for info
(9 AM - 4 PM EST Monday - Friday or Voicemail anytime)

emailEmail: Help@Backwater-Valves.com

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Akron, OH, USA
All rights reserved.

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backwater-valves.com is independently owned and resells products produced and manufactured by Mainline of Canada and assumes no liability for the installation of backwater valves and related products.

Be sure to check with the plumbing authority in the municipality in which your valve is to be installed to insure that your installation is in compliance with local code, and be sure have your valve inspected by your local plumbing inspector after installation. Inspect your valve frequently; the Backwater Valve through its clear plastic housing top, and the Adapt-A-Valve, by removing the gate cassette.

IMPORTANT NOTES:

Pipe end-to-end, the Adapt-A-Valve takes up 6" of run in your line and the outlet is 1-1/2" LOWER than the inlet, so in just 6" the level of the pipe at the outlet side needs to be 1-1/2" lower.

Pipe end-to-end, the Backwater Valve takes up 12" of run in your line and the outlet is 3/4" LOWER than the inlet, so in just 12" the level of the pipe at the outlet side needs to be 3/4" lower.

Depending upon the amount of slope in your line (2% minimum is required for proper operation), you may need to replace several feet of pipe downstream from the valve to average out this "loss" of fall.

NOTE: New Straight-Fit and ML-FR4 require less slope. (refer to detail pages for these products)

Policies

Mainline Valve Warranty
(in printable Adobe Acrobat .pdf file)

buy backwater valves online
High-volume inquires are directed to Tom at Mainline

 

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