I have had an outside tap fitted. It starts on first floor and goes down the outside wall. I have isolator inside and tap outside.
If I turn off tap and then isolate, then open tap to drain down, I find the vacuum created is enough to hold a fair amount of water in the pipe outside.
Question is, will the water split the pipe in winter or will the vacuum take up any expansion due to freezing.
Or should I fit a Tee in the pipe with a valve to release the vacuum and empty the pipe.
Thanks in advance for the help.
If I turn off tap and then isolate, then open tap to drain down, I find the vacuum created is enough to hold a fair amount of water in the pipe outside.
Question is, will the water split the pipe in winter or will the vacuum take up any expansion due to freezing.
Or should I fit a Tee in the pipe with a valve to release the vacuum and empty the pipe.
Thanks in advance for the help.