Welcome to Plbg.com
Thank you to all the plumbing professionals who offer their advice and expertise

Over 645,000 strictly plumbing related posts

The best online PLUMBING help, advice and information forum. Questions and discussions about toilets, sinks, faucets, drainage, venting, water heating, showers, pumps, water quality, and other exclusively PLUMBING related issues. Please refrain from asking where to purchase a product, or business, pricing, or legal questions, or for contractor referrals, or any questions not related to plumbing. Keep all posts positive and absolutely no advertising. This site is free, ad free, pop-up free and made possible by:  

Post New
Search
Log In
How to Show Images
Newest Subjects
 What's a Stop And Waste valve for?
Author: bamnc (NC)

This is a question left over from winter smile

While the copper supply line in my basement was frozen, I was able to get water from "the street" by opening the waste outlet on the stop-and-waste valve. Does that mean the stop-and-waste is installed backwards? In other words, is the waste outlet supposed to drain the water from the house, or is it made to drain the water from the pipe between the meter and the shutoff valve?

Post Reply

 Re: What's a Stop And Waste valve for?
Author: packy (MA)

sometimes the valve body will have an arrow showing the direction of flow.
the waste button is supposed to drain the water from your house piping when the valve is closed.
when installed correctly, the pressure enters the valve from below the seat.

Post Reply

 Re: What's a Stop And Waste valve for?
Author: hj (AZ)

If it had been a "T" handle stop and waste, which automatically opens the drain port when it is closed, you would have had a flood if it were installed backwards. In your case, if it was "pressure" water, and not just drain down, then it is backwards.

Post Reply

 Re: What's a Stop And Waste valve for?
Author: bamnc (NC)

I closed the valve, unscrewed the cap on the waste outlet, opened the valve just a little bit, and water came out the outlet "all day long", obviously from the street and not from the frozen piping of the house. So I filled buckets to do some cooking, toilet-flushing, etc. So the Stop And Waste valve is backwards, right?

If the valve hadn't been backwards, I would have closed the valve, opened the outlet cap, and drained a tiny bit of water from the frozen pipes even without opening the valve a little bit. Right?

-Bam in NC

Post Reply

 Re: What's a Stop And Waste valve for?
Author: hj (AZ)

exactly.

Post Reply

 Re: What's a Stop And Waste valve for?
Author: packy (MA)

2 choices...
remove the valve and replace with a ball valve (oriented correctly)that has a drain button.
cut the pipe on the house side of the valve and install a tee with a drain valve in it.

Post Reply

 Re: What's a Stop And Waste valve for?
Author: Fixitangel (NC)

So if a Stop and Waste valve is installed backwards, it becomes a Stop and Fill valve instead smiling smiley



Edited 2 times.

Post Reply

 Re: What's a Stop And Waste valve for?
Author: hj (AZ)

More like a "stop and flood" valve, because there is no way to stop the flow inless you can screw a cap onto it, (which you cannot do with a "T handle" stop and waste), or find a second valve further upstream.

Post Reply





Please note:
  • Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
  • Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
  • Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
  • Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.

Search for plumbing parts on our sponsor's site:




Special thanks to our sponsor:
PlumbingSupply.com


Copyright© 2019 Plbg.com. All Rights Reserved.