Circulation Pump - water circulation pump

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ML3XPVC - Mainline Adapt-A-Valves are sold with removable NORMALLY OPEN cassette included in the price and for use with 3" PVC drainage pipe.

MLSF446ANC - STRAIGHT FIT ABS - Mainline Straight-Fit Extendable Backwater Valve For use with 4" Schedule 40 ABS drainage pipe Shipped WITHOUT ACCESS BOX: (ABS Valve Body and Standard Normally-Closed Gate)

TC Cap - New Cap for Top Check valves. Caps rarely need to be replaced, but we keep them in stock just in case. Comes WITH replacement O Ring

Patented USA 4503881 and Canada 1196835; other patents pending. ASME A112.14.1-03, CSA B181.1-02 and B181.2-02, UPC US 8.096.318 and Canada 7.757.706 and 2.414.634.

US & Protectorates, US Express, All Canadian Provinces, Caribbean, UK, Western Europe, Scandinavia, Israel, Spain, South Africa, Australia, New Zealand. SPECIAL NOTE: You MUST be a "PayPal Verified" buyer for us to ship Internationally. Shipping Options at bottom of page and will be offered at checkout

MLSF446PNC - STRAIGHT FIT PVC - Mainline Straight-Fit Extendable Backwater Valve For use with 4" Schedule 40 PVC drainage pipe Shipped WITHOUT ACCESS BOX: (PVC Valve Body and Standard Normally-Closed Gate).

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.

4963 Cap -New Gate for for both 4" ABS and 4" PVC valves. Caps rarely need to be replaced, but we keep them in stock just in case. Comes WITH replacement O Ring

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

The STRAIGHT-FITTM also features an optional Test Gate that can be used to pressure test the system or to isolate the property for whatever purpose; non -payment of services, vacation properties, servicing etc.

ALWAYS check your local building code before installing.- Shipping Options at bottom of page and will be offered at checkout - contact us

ML-FR4-A - Mainline (available only in Schedule 40 ABS) for use with 4" ABS drainage pipe -- Normally OPEN Float-Ball Controlled Gate with clear plastic inspection lid assembly

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

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

New-Powers LFG480-10 - 3/8" NPT Bathroom Lavatory Tempering Valve Assembly. $45.50 Buy It ...

Mainline has integrated Smart-CURVETM technology into these valves where the curved gate and Smart-CURVETM "cleat insert" are designed to allow a sewer rodding snake to feed and retract without catching on the gate or valve body.

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.

To reduce the possibility of groundwater, radon gas, bugs and insects and to help with nice clean valve access free of gravel, sand, mud and water, it is shipped with a Mainline Bladder Seal!

PlumbingSupply.com is your source for water hammer arresters, plumbing-related tools, and thousands of other plumbing-related products.

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.

Eco Plumbers provides expert water treatment and filtration services in Columbus, OH. Trust our eco-friendly solutions for clean, safe water.

WATTS LF7RU2-2 1 X 1 0072205 1X1 TXT BRASS RESIDENTIAL DUAL CHECK VALVE LEAD FREE at Shop with Lee Dopkin.

To aid you in knowing when your Top Check is closed and protecting you from a backflow event, it is shipped with a Mainline Top-Check Alarm!.

Patented USA 8.096.318 / 7.757.406 and Canada 2.414.834; other patents pending. ASME A112.14.1-03, CSA B181.1-02 and B181.2-02, UPC US 8.096.318 and Canada 7.757.706 and 2.414.634.

If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves or Straight Fit Valves (see sections below).

3" STRAIGHT-FITTM backwater valves have a body that is extendable to whatever depth you require by simply gluing a riser of 4" Schedule 40 (like material) pipe into the valve body and extending it to ground level. This sourced on site and cut-to-size on site riser is to be capped with an air-tight cap. The normally closed gate is glued to a piece of ¾ PVC pipe (sourced on site and cut on site to proper length) and terminated with a 3/4" Schedule 40 PVC tee to form a tool to extract the gate from the valve body.

Please make sure you have a Mainline brand Top Check Valve when you select this replacement part number or this product will not work with your valve.

The insertion of a Test-Eze Gate into your Straight Fit Valve allows for isolation of the Valve 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.

MLSF334ANC - STRAIGHT FIT ABS - Mainline Straight-Fit Extendable Backwater Valve For use with 3" Schedule 40 ABS drainage pipe Shipped WITHOUT ACCESS BOX: (ABS Valve Body and Standard Normally-Closed Gate)

Backwater-valves.com accepts these major credit cards plus eCheck using PayPal's secure checkout. (No PayPal account needed) We are unable to process phone orders, all orders must be placed via the website. more . . .

NOTE: If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves or Straight Fit Valves (see sections below).

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.

MLSF33PNC - STRAIGHT FIT PVC - Mainline Straight-Fit Extendable Backwater Valve For use with 3" Schedule 40 PVC drainage pipe Shipped WITHOUT ACCESS BOX: (PVC Valve Body and Standard Normally-Closed Gate).

Please make sure you want 4" ABS (Schedule 40 DWV) SHIPPED WITH the PE- 2013 ACCESS BOX when you select this part number.

Shipping Options are presented at checkout: --- We ship USPS or UPS Ground or Expedited Shipping Service in the United States. --- Global Priority Mail Service to: Canada, UK, W. Europe, Scandinavia, Spain, Israel, S. Africa, Australia. New Zealand, Costa Rica, The Caribbean etc. with any additional duty charges for buyer's account. ----- SPECIAL NOTE: You MUST be a "PayPal Verified" Buyer for us to ship Internationally

Febco 765 Pressure Vacuum Breaker 1 in. Bronze With Ball Valve · For use in health hazard cross connections and continuous pressure applications · Durable ...

Please make sure you want 4" PVC (Schedule 40 DWV) NORMALLY OPEN when you select this valve. ALWAYS check your local building code before installing.

Please make sure you want 110mm PVC (Schedule 40) when you select this part number - Uses "Fernco" brand Neoprene Adapter to connect.

Series PRV-2 Water Pressure Reducing Valves are designed to reduce incoming water pressure to a sensible level to protect plumbing system components and reduce ...

Please make sure you want 4" PVC (Schedule 40 DWV) NORMALLY CLOSED when you select this valve. ALWAYS check your local building code before installing.

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Please make sure you want 110mm (Schedule 40) when you select this part number. Uses "Fernco" brand Neoprene Adapter to connect.

ML-FR4-A-Combo - Mainline (available only in Scheduel 40 ABS) for use with 4" ABS drainage pipe -- Normally OPEN Float-Ball Controlled Gate with clear plastic inspection lid assembly and SHIPPED WITH PE-2013 ACCESS BOX at bundled price!!

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 the removable gate on one end and tee on the other. This unique Adapt a Valve design allows for deep burial access in your yard without the need for a manhole or expensive underground vault.

A socket fusion tool kit, including heat tool and various sizes of heads is available from Orion. Note: • Make all field cuts of pipe square and true using ...

These valves are typically installed inside in the basement floor for easy access. To assist in allowing the installation to be flush with the basement floor level, it is shipped with a Mainline ABS Access Box!

ML88ICRNO - Mainline PVC Inspection Chamber (constructed to SDR 26 heavy wall sewer specification) for use with 4" PVC drainage pipe SHIPPED WITH Normally OPEN Gate and 8" Lid Assembly

These valves are 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).

Please make sure you want 4" ABS (Schedule 40 DWV) NORMALLY CLOSED when you select this valve. ALWAYS check your local building code before installing.

Model 4963 Mainline Fullport Backwater Valve Parts - for use with BOTH ABS & PVC Backwater Valves

Please make sure you have a Mainline brand TOP CHECK Backwater Valve when you select this part number or this product may not work with your valve.

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 the removable gate on one end and tee on the other. This unique Adapt a Valve design allows for deep burial access in your yard without the need for a manhole or expensive underground vault.

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.

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

4963 RK - New Stainless Steel Bolts (save original nuts), Foam Replacement Gasket and Neoprene O-ring that seats in valve body and seals the gate for both 4" ABS and 4" PVC Backwater Valves. Kit may be needed if you remove the clear plastic lid from valve for maintenance or to replace the gate or lid. Carefully clean all surfaces and install the new parts.

TOP CHECK VALVE ONLY ML PVC4TC - Mainline Top-Check Backwater Valve with Manual Close feature for use with 4" Schedule 40 PVC drainage pipe:

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

ALWAYS check your local building code before installing.- Shipping Options at bottom of page and will be offered at checkout - contact us

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.

An RP consists of inlet and outlet shut-off valves, four properly located test cocks, a first and second check valve component, and a relief valve component.

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.

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

TOP CHECK REPLACEMENT LID ML TCLid - Mainline Top-Check Backwater Valve REPLACEMENT Clear Lid - - - you must already have an original Top Check valve with the Top Check "innards" already in place.

4" STRAIGHT-FITTM backwater valves have a body that is extendable to whatever depth you require by simply gluing a riser of 6" Schedule 40 (like material) pipe into the valve body and extending it to ground level. This sourced on site and cut-to-size on site riser is to be capped with an air-tight cap. The normally closed gate is glued to a piece of ¾ PVC pipe (sourced on site and cut on site to proper length) and terminated with a 3/4" Schedule 40 PVC tee to form a tool to extract the gate from the valve body.

MLSF668PNC - STRAIGHT FIT PVC (available in PVC Only) Mainline Straight-Fit Extendable Backwater Valve For use with 6" Schedule 40 PVC drainage pipe Shipped WITHOUT ACCESS BOX: (PVC Valve Body and Standard Normally-Closed Gate).

TC RK - New Stainless Steel Bolts (save original nuts), Foam Replacement Gasket and Neoprene O-ring that seats in valve body and seals the gate for Top Check Valves. Kit may be needed if you remove the clear plastic lid from valve for maintenance or to replace the gate or lid. Carefully clean all surfaces and install the new parts.

Please make sure you have a Mainline brand 4963 FULLPORT Backwater Valve when you select this part number or this product will not work with your valve.

Patented USA 4503881 and Canada 1196835; other patents pending. ASME A112.14.1-03, CSA B181.1-02 and B181.2-02, UPC US 8.096.318 and Canada 7.757.706 and 2.414.634.

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 (Schedule 40 DWV) NORMALLY OPEN when you select this valve. ALWAYS check your local building code before installing.

PZ-3-TZ Test-Eze Gate - Solid Cassette acts as an Isolation Valve / Knife Valve for either 3" ABS or 3" PVC Adapt-A-Valve.

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.

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.

If you do not have inside access (as in buildings built on a slab), you may want to look at our Adapt-A-Valves or Straight Fit Valves (see sections below).

ML88ICRNC - Mainline PVC Inspection Chamber (constructed to SDR 26 heavy wall sewer specification) for use with 4" PVC drainage pipe; SHIPPED WITH Normally CLOSED Gate and 8" Lid Assembly

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.

Patented USA 8.096.318 / 7.757.406 and Canada 2.414.834; other patents pending. ASME A112.14.1-03, CSA B181.1-02 and B181.2-02, UPC US 8.096.318 and Canada 7.757.706 and 2.414.634.

ML PVC4TCCombo - Mainline Top-Check Backwater Valve with Manual Close feature for use with 4" Schedule 40 PVC drainage pipe:

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.

John Guest Shut-Off Valve | 1/4" PF - 1/4" PF | quick connect push fit 1/4 inch | quarter inch push fir shut off valve |

TOP CHECK ALARM KIT ML TCAlarm - Mainline Top-Check Backwater Valve ALARM KIT for use only with Mainline brand Top Check Backwater Valves:

ML TCKit - Mainline Top-Check CONVERSION KIT - - - Contains all of the parts needed to RETROFIT an older Mainline brand 4963 FULLPORT Backwater Valve into a Top Check functioning model. Top Check Alarm Kit above can then also be used! Please make sure you have a Mainline brand 4963 FULLPORT Backwater Valve when you select this part number or this product will not work with your valve. Shipping Options at bottom of page and will be offered at checkout

Patented USA 4503881 and Canada 1196835; other patents pending. ASME A112.14.1-03, CSA B181.1-02 and B181.2-02, UPC US 8.096.318 and Canada 7.757.706 and 2.414.634.

6" STRAIGHT-FITTM backwater valves have a body that is extendable to whatever depth you require by simply gluing a riser of 8" Schedule 40 (like material) pipe into the valve body and extending it to ground level. This sourced on site and cut-to-size on site riser is to be capped with an air-tight cap. The normally closed gate is glued to a piece of ¾ PVC pipe (sourced on site and cut on site to proper length) and terminated with a 3/4" Schedule 40 PVC tee to form a tool to extract the gate from the valve body.

4963 Gate -New Gate for for both 4" ABS and 4" PVC 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.

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Circulation Pump - water circulation pump

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