Backwater Valve Pricing

Our Mainline Combo Fullport Backwater Valves are priced with Access Box* US delivered.

*SPECIAL LIMITED OFFER: We are now shipping our Mainline Backwater Valves with an Access Box AT NO ADDITIONAL CHARGE ( a $50 value ).

Secure Online ordering is now enabled

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.

normally-open or normally-closed

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

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Measurements and Specifications
Frequently Asked Questions
Contact Us

Mainline Fullport Backwater Valves offer the right solution for your sewer backup problems.
SPECIAL OFFER: We ship our Mainline Backwater Valves with Access Box ($85.00 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

Phone Greg at 330.836.9393
(9 AM - 4 PM Eastern or Voicemail anytime)
Email: Help@Backwater-Valves.com
Check Our FREQUENTLY ASKED QUESTIONS Page

backwater-valves.com is independently owned and resells
products produced by various manufacturers and assumes no
liability for the installation of backwater valves and related products.
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 5/8" LOWER than the inlet, so in just 12"
the level of the pipe at the outlet side needs to be 5/8" 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.

Policies

High-volume inquires may be directed to Tom at Mainline

Backwater-valves.com / Bike-run-walk.com accepts these
major credit cards plus eCheck
using PayPal's secure checkout.
(No PayPal account needed)
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