Model # 43904

Internet #100144734

Store SKU #730409

null 4 in. PVC Backwater Valve
0038753439044

4 in. PVC Backwater Valve

$38.57 /each

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Product Overview

Prevent sewage or any other fluid from flowing back into your water system with the Oatey 4 in. PVC Backwater Valve. Its elastomeric seal inside the flapper ensures a tight seal, preventing fluid from entering. Designed for use with 4 Sch. 40 piping system.

  • Protects low areas or basements from backflow or waste from street sewers
  • Elastomeric seal in quick action flapper ensures a water tight seal
  • Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand
  • Valve hub fits DWV pipe and can be adapted for sewer and drain pipe
  • Threaded cap

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Customer Questions & Answers

6 Questions2 Answers

Customer Questions & Answers

4 in. PVC Backwater Valve
4 in. PVC Backwater Valve

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This question is from 4 in. PVC Backwater Valve
 
1 answer

Can this be installed in the main sewer discharge line going to the city main?

This question is from 4 in. PVC Backwater Valve
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Canada
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June 9, 2016
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Answer (1)

August 26, 2016
Answer: 
Yes just make sure to leave a access to the valve in case you have to change the flap. You don't want to dig your yard up twice.
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This question is from 4 in. PVC Backwater Valve
 
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Can I get this in 6"? Oatey make a Model #43908.

This question is from 4 in. PVC Backwater Valve
Asked by
Raleigh
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July 8, 2015
I've contacted Oatey and they don't sell direct to the public and said HD has or can get this device.
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Answer (1)

July 19, 2015
Answer: 
Thank you for your recent inquiry with The Home Depot. Currently the 4 inch is available. I believe it would be best to reach out to the manufacturer for assistance. The manufacturer is Oatey and their customer service department can be reached at 800-321-9532. Please contact us with any additional questions at 800-430-3376 or homedepot.com. Thank you for shopping Home Depot.
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This question is from 4 in. PVC Backwater Valve
 
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Can this be used with a septic system on a gravity flow?

This question is from 4 in. PVC Backwater Valve
Asked by
Glen Ellyn, IL
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September 9, 2016
I have a septic system, the main discharge line that leads to the tank is a gravity based discharge. Will this work on that, is gravity enough to push through the flapper? Can the flapper be replaced if it breaks? Can you rod through this? Thanks!
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Can this be used with a gravity drain?

This question is from 4 in. PVC Backwater Valve
Asked by
Erie, PA
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July 22, 2016
I use a pipe connected to my sump area as a gravity drain for water under my basement. Since no pump is used, I'm concerned that the low flow of water from my sump will not open the valve and let the water flow away from my basement.
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Customer Reviews

Rated 4.3 out of 5 by 6 reviewers.
Rated 5.0 out of 5.0 by This is what you need!! I installed the 2" valve on my basement slop sink a few months ago after my third sewage backup. Well yesterday all my neighbors were calling to see if I had as much sewage in my basement as they did. Not one single drop. This valve worked perfectly. October 28, 2015
Rated 5.0 out of 5.0 by prevent sump back up installed in sump drain to avoid sump water back up during heavy rainfalls September 29, 2015
Rated 1.0 out of 5.0 by arrived broken Item arrived broken. I had to return for credit. || July 21, 2015
Rated 5.0 out of 5.0 by Works Great Works like it was designed to. Saves a lot of trouble down the road. June 30, 2015
Rated 5.0 out of 5.0 by Just what the doctor ordered, great product!!! I was having problem with toilet backing up occasionally when we would get too much rain for several days due to the waste system getting overloaded I guess. I knew about backflow prevention devices for potable water and wondered if there was such a device for sewer lines, I pulled up the home depot website and started to search for backflow devices and there it was.........a backwater valve............awesome...........just what I had been thinking I needed to stop my dirty mess cleanup jobs in the bathroom...............this is the ticket folks!!! May 6, 2014
Rated 5.0 out of 5.0 by great design, all access clean-outs should be designed like that one I have been using this cleanout for 3 years and got another one for my second house. Pros: LIght, durable, flap valve to prevent backflows, Easy to open / close cap, low profile. Smart level stepdown flow. Cons: Not sold at the stores. I think they should. June 25, 2013
  • 2016-09-23 T20:26:47.924-05:00
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