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I've got a 16 year old house with an open vented system and two zone valves (HW and CH). It all works fine except the AAV in the airing cupboard is leaking water. I've put a ball of PTFE in the cap and that's blocked it for now - and perhaps will be ok till the boiler needs replacing or it's...

I have a Salamander RSP100 shower pump. For 7 years it has worked fine and nothing has changed in the meantime. I have noticed a slight leak from the hot side which appears to indicate a seal has failed. The Salamander website suggests a leak could be the result of water too hot ie no more...

Help ! Yesterday I turned off the mains to change tap washer in kitchen - ok Today - no hot water ! In loft, the tank which feeds hot water cylinder is empty down to the outlet pipe. The ballcock seems to move freely and no reason to suspect it is not working. I have just tried a very quick...