DIY Doctor

Plugging a free flowing hot pipe on old water system

Postby B0M0A0K » Sat Aug 22, 2020 3:57 pm

I am preparing to change the sink unit in my kitchen and have just discovered that there are no cutoff valves on the hot and cold pipes that feed the sink. I would prefer to fit these before I go any further but this is an old house and I have never really understood the way the water system works. This is an old back boiler installation and it looks like I would need to completely empty the hot water tank before cutting the hot pipe to fit the cut off valve. If I can't figure out how to do this then it will be a free flowing hot water supply while I am trying to fit the cut off valve. That's alot of water!

Is there anything anyone can recommend that would let me isolate the supply while I complete this work without draining the entire hot water tank? I guess the "freeze" solution is out of the question because it was constantly melt due to the hot water.

Any suggestions please?
B0M0A0K
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Sat Aug 22, 2020 3:46 pm


Sponsor

Simply Build It

Postby stoneyboy » Sun Aug 23, 2020 10:13 pm

Hi b0m0a0k
Assuming you have a cold water tank you just need to plug the pipe which feeds the hot water cylinder or you can tie up the ball valve, empty the tank use a cold tap, then turn on a hot tap to drain the remaining water. Your hot cylinder will remain full.
Regards S
stoneyboy
Rank: Project Manager
Posts: 3661
Joined: Wed Dec 10, 2008 6:44 pm



Display posts from previous
Sort by
Order by



  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


 
  • Related Topics