Backwater Valves

Backwater Valves

ALWAYS check your local building code before installing. contact us	4963ABSCombo - Mainline Fullport Backwater Valve for use with 4" ABS drainage pipe SHIPPED WITH PE 2013 ACCESS BOX !! This valve is typically installed inside in the basement floor for easy access. If you need your installation to be flush with the basement floor level, it is recommended that you install this valve in an Access Box (available below). If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves (see Adapt-A-Valve section below). Please make sure you want 4" ABS when you select this part number. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 198.00

ALWAYS check your local building code before installing. contact us	4963PVCCombo - Mainline Fullport Backwater Valve for use with 4" PVC drainage pipe SHIPPED WITH PE 2013 ACCESS BOX !! This valve is typically installed inside in the basement floor for easy access. If you need your installation to be flush with the basement floor level, it is recommended that you install this valve in an Access Box (available below). If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves (see Adapt-A-Valve section below). Please make sure you want 4" PVC when you select this part number. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 203.00

ALWAYS check your local building code before installing. contact us	4963ABS - Mainline Fullport Backwater Valve for use with 4" ABS drainage pipe WITHOUT ACCESS BOX. This valve is typically installed inside in the basement floor for easy access. If you need your installation to be flush with the basement floor level, it is recommended that you install this valve in an Access Box (available below). If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves (see Adapt-A-Valve section below). Please be sure you want a black 4" ABS valve WITHOUT ACCESS BOX when selecting this part. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 193.00

ALWAYS check your local building code before installing. contact us	4963PVC - Mainline Fullport Backwater Valve for use with 4" PVC drainage pipe WITHOUT ACCESS BOX. This valve is typically installed inside in the basement floor for easy access. If you need your installation to be flush with the basement floor level, it is recommended that you install this valve in an Access Box (available below). If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves (see Adapt-A-Valve section below). Please be sure you want a black 4" PVC valve WITHOUT ACCESS BOX when selecting this part. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 198.00

Replacement Parts for Backwater Valves

contact us	4963 Lid - Clear Lid with 4" Cleanout Cap and O-Ring Seal for both4" ABS and 4" PVC Backwater Valves. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 43.00

contact us	4963 RK - New Stainless Steel Bolts (keep and use original nuts) and Sticky Foam Replacement Gasket for both4" ABS and 4" PVC Backwater Valves. This Replacement Kit may be needed if you remove the clear plastic lid from your Backwater Valve for maintenance, to replace the gate or to replace the lid. NOTE: the gasket is NOT the original neoprene gasket installed in the valve from the factory and that gasket is to be left in place. After carefully cleaning the surface, the new sticky foam gasket is to be installed over top of the original. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 19.00

contact us	4963 Gate - New Gate for both4" ABS and 4" PVC Backwater Valves. These Gates rarely need to be replaced, but we keep them in stock just in case. NOTE: The Clear Plastic Lid must be removed to replace Gate as it is larger than the 4" cleanout access. Gate simply snaps in place in channels inside of the valve body. Replacement Lids and Bolt/Gasket kits are also available above. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 23.00

Adapt-A-Valves

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML4XABS - Mainline Adapt-A-Valves are sold with removable NORMALLY OPEN cassette included in the price and for use with
4" ABS drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Standard 6" DWV pipe and cap (not included) is cut to length to extend valve access to ground level at time of installation. At the same time, a piece of 3/4" PVC pipe is cut to length and glued to removable. This unique Adapt a Valve design allows for deep burial access in your yard without the need for a manhole or expensive underground vault.

Please make sure you want 4" ABS NORMALLY OPEN when you select this valve. ALWAYS check your local building code before installing.

Adapt A Valve does not require a vault !!

$ 203.00

4" ABS Adapta Valve

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML4XABS - Mainline Adapt-A-Valves are sold with removable NORMALLY CLOSED cassette included in the price and for use with
4" ABS drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Please make sure you want 4" ABS NORMALLY CLOSED when you select this valve. ALWAYS check your local building code before installing.

Adapt A Valve does not require a vault !!

$ 178.00

Adapta Valve

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML4XPVC - Mainline Adapt-A-Valves are sold with removable NORMALLY OPEN cassette included in the price and for use with
4" PVC drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Please make sure you want 4" PVC NORMALLY OPEN when you select this valve. ALWAYS check your local building code before installing.

Adapt A Valve does not require a vault !!

$ 209.00

Adapta Valve

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML4XPVC - Mainline Adapt-A-Valves are sold with removable NORMALLY CLOSED cassette included in the price and for use with 4" PVC drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Please make sure you want 4" PVC NORMALLY CLOSED when you select this valve. ALWAYS check your local building code before installing.

$ 184.00

Adapt a valve

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML3XABS - Mainline Adapt-A-Valves are sold with removable NORMALLY CLOSED cassette included in the price and for use with 3" ABS drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Standard 4" DWV pipe and cap (not included) is cut to length to extend valve access to ground level at time of installation. At the same time, a piece of 3/4" PVC pipe is cut to length and glued to removable. This unique Adapt a Valve design allows for deep burial access in your yard without the need for a manhole or expensive underground vault.

Please make sure you want 3" ABS NORMALLY CLOSED when you select this valve.

Adapt A Valve does not require a vault !!

$ 88.00

Adaptavalve

ALWAYS check your local
building code before installing.

US, US Express, UK, Canada & Spain Shipping Options at bottom of page

ML3XPVC - Mainline Adapt-A-Valves are sold with removable NORMALLY CLOSED cassette included in the price and for use with " PVC drainage pipe.

Designed for exterior in-the-ground use without a vault. Removable gate cassette allows gate to be easily removed for cleaning, or if drain line requires snaking.

Please make sure you want 3" PVC NORMALLY CLOSED when you select this valve.

Adapt-A-Valve does not require a vault !!

. . .

$ 88.00

. . . .

Extra Adapt-A-Valves Cassettes

contact us	PA4CassNC - Extra NORMALLY CLOSED Cassette for 4" ABS or PVC Adapt-A-Valve. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 49.00

contact us	PA4CassNO - Extra NORMALLY OPEN Cassette for 4" ABS or PVC Adapt-A-Valve. Uses 4" special buoyant disk for flotation to lift gate into the closed position when a backflow condition occurs. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 72.00

contact us	PA3CassNC - Extra NORMALLY CLOSED Cassette for 3" ABS or PVC Adapt-A-Valve. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 34.00

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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.

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Access Boxes

contact us	PE2013 - Mainline Backwater Valve Access Box Allows for easy in-floor installation of our 4963 ABS and PVC Fullport Backwater valves. Top of box is to be set flush to floor level so flat top lid is perfectly even with your floor surface. The overall width of the open base of the black 2013 Access Box is 14-7/8" X 19-3/4" and steps down to 11-1/8" X 14-7/8" at the top of its 16" height. The removable gray top access panel is 10-7/8" X 14-1/2". Top access panel is held in place by two 1/4" (7/16" wrench) durable stainless steel bolts. ALWAYS check your local building code before installing this product. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 69.00

Adapt-A-Valves Eze Test Gate

contact us	PZ-4-TZ Test-Eze Gate - Solid Cassette acts as an Isolation Valve / Knife Valve for either 4" ABS or 4" PVC Adapt-A-Valve. The insertion of a Test-Eze Gate into your Adapt-A-Valve allows for isolation of the Adapt-A-Valve Chamber / Cleanout to manually stop flow into and out of the building for inspection, or for some of the following other reasons: flushing of city mains, servicing of sewer lines, abandonment of premises, isolation of seasonal properties, during storms / hurricanes, contractors pressure testing of plumbing systems upstream of the valve chamber / cleanout, etc. US, US Express, UK, Canada & Spain Shipping Options at bottom of page
		$ 27.00

Flood Alarms

Wire it to every possible point of water backup or leak in your home and you can rest assured you will know when you need to take action. While a backwater valve will keep the neighbors sewage out of your home, a leaky washing machine, hot water heater, etc. can cause problems that this device will detect. Additionally, if your backwater valve is working to protect you from a problem downstream, you will want to know that you should not run water or flush toilets in your own home until the downstream problem is solved. Operates on one 9-Volt battery that alerts you when it is time for a battery change. US, US Express, UK, Canada & Spain Shipping Options at bottom of page contact us		11" Sensor 1-pack: $ 22.97
		11" Sensor 2-pack: $ 41.97
		11" Sensor 6-pack: $ 104.97
		11" Sensor 12-pack: $ 184.97
		3 ft. Sensor 1-pack: $ 32.97
		5 ft. Sensor 1-pack: $ 35.97
		10 ft. Sensor 1-pack: $ 40.97
	. . .	20 ft. Sensor 1-pack: $ 45.97 . . . .