ring redring the PRV rubber seal has blown and one cost about £5.00. oftern happens when you put your had over the shower head to clean it when the shower is running the back pressure blows the PRV seal.
richard
August 2009
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix plumbing.