Plumbing Drain Backwater Valve
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- The backwater valve is a code required directional valve installed in a sewer to keep the public sewer from flooding a building if it should back up. Sioux Chief makes an excellent kit for installation which includes the backwater valve, and an access barrel and finish cover. Both the International Plumbing Code (IPC) and the Uniform Plumbing Code (UPC) require the installation of a backwater valve in certain specific situations.
In this video, Plumber-Tom shows an example of a backwater valve and explains how it functions. Then he gives a detail description of the varying circumstances where a back water valve should be installed. Finally, he takes you on a first person tour of an underground plumbing installation and shows the installation of a backwater valve. He shows how you can decide when to install a backwater valve based on the existing manhole on the street.
This video is intended to help plumbing professionals understand the backwater valve.
Hi, I will have to connect schedule 40 pvc inside valve to make it the right distance between the cast iron line. Is it a must to use pvc glue for this connection? I'm concerned about the ability to roll a 4" proflex 3000-44 coupling. Thanks
You can use no hub bands or Fernco couplings to make the connections.
Hello, I attempted to use the 4 inck no hub corrugated metal shielded coupling to the backwate valve , cast to pvc, and I still get some leakage on both sides where the couplings are. Any suggestions/ Would a 4 inch non shielded thicker rubber fernco be better at preventing leaks? thanks@@plumber-tom9470
What country u from..beg u pls..send me like that...godbless
United States of America is where I am from.
Why not put a the backwater valve / Cleanout at the main line outside of the house and close to the street to avoid the whole house having any issue whatsoever.
Great idea. The problem is accessibility. The sewer in many places is so deep that an additional manhole would be required to access the valve. That is why it is most often installed inside the building. Also, fixtures that are not below the next upstream manhole in the street are not required to pass through the back water valve. If the valve were installed outside the building it would require a separate building drain, which is not ideal.
@@plumber-tom9470 I have a customer who wants this installed on their main. They live in the high risk flood zone in coastal Florida. How can you make it accessible from the outside? The main is about 4’ deep.
Sir I have installed this product but it's not working.It is unable to prevent the back flow of rainwater.
Hello Javed, Why is it not working? Did you get any chance to check it? and was the installation done properly?
Not a perfect fix. But better than nothing in most cases.
As far as making sure your house drain or section of drain is above the manhole, I know sometimes a slow grade can be deceiving and hard to tell how far it goes up. Have you ever felt a need to shoot grade to make sure you are good?
I also liked the video with the field walk through. Well done!
Thanks! I have taken time to figure elevations with a laser level. Most of the time a visual inspection is good enough though.
@@plumber-tom9470 like that 120 lb manhole cover's going to give way....hahaha....More bureaucratic bull shit.
Enjoyed the video the first time, but it came in extra helpful when I was facing the question if what Backwater valves I need and I watched it again. Great resources Tom! Thanks!
I badly nid...im from phil. 3" pvc backwater valve id ok for me
Thanks for watching. Most jurisdictions allow 3" backwater valves.
It looks like you're not protecting the 1/2:bathroom upstairs !???
That was above the manhole level at the street so it was not necessary to run that through the backwater valve.
What are the chances that in later years, or decades, the manhole cover gets stuck so won't overflow? Or at least not straightaway until increased pressure has built up. It could mean a house level with it or even slightly above getting backflow into the property for a time (shortly) before the manhole goes. Do manhole covers expand sufficiently on a really hot day to get stuck in place?
Manholes usually have a bunch of vent holes in them to provide air flow. Pressure building up is bit common.
Hello, how is the flap attached to main body? Will it stay in place in a severely overcharged sewer system from torrential rain. I saw a Oatey brand, and it looked like the flap could be lifted easily up and off. Didn't seem like a good design ,if I am actually seeing it correctly. Thanks
Some of the models can be lifted out of place, which is a problem. Some manufacturers have improved their design and connected the flap to a ring so it cannot come out of place.
Thanks, my existing valve, is longer than the ones I am seeing advertised on line. Right now there are 4" long fernco black coupling with steel clamps. Since a newer shorter valve would replace it, is it acceptable to only have a inch overlap of fernco on both ends of fernco? Or would I have to figure out something like a PVC connector inside valve to extend length? Thanks
The Oatey flap only comes out of place when the screw top is off which is what secures it in place.
Will it work if the sewage water back flow all the time?
Any backflow is a back thing and will cause stoppage of the valve.
I am waiting for your positive response
Thanks for watching.
Where I can buy the backwater valve?
Plumbing suppliers have them.
Plz answer me when you see
What else can I help you with?
I need this type walve how I get this product???
Plumbing suppliers. Or order online.
It's valve, not walve
@@hellasboy8243 Right. Funny, I thought you were talking to me, so I combed back through the video to make sure I didn't misspell the word. 😂
how much
If you are looking for a price I would recommend contacting your local plumbing supplier
Hi bro
Hello
Aoa
Thank you