Hi, thanks for the dryer advice
I have another problem. I moved an outside tap for someone and after I shut the mains stopcock off and opened the existing outside tap and eventually hot water came out though it wasn't under much pressure and didn't last for long.
I notice there is no double check valve on the cold water feed to the boiler, the manufacturer's instructions show that this should be installed. So am I correct in assuming that when the mains water is shut down then we are draining off the central heating system from the outside tap, albeit the system in a vaccuum so it won't drain at speed????
Does the brass fitting at the end of the cold feed to the boiler (ie- that goes into the boiler) incorporate a check valve?
As the original installer didn't put in a dcv how bad is this?
Also when the outside tap is being used you cannot fill the boiler and also the shower doesn't work. The property has quite low pressure water but is there any kind of equalising valve that should be installed and where should it be installed?
When I arrived at the property they also said that the loft radiators weren 't working. I bled the radiators for a few minutes (!!!!) and everything ok. The loft radiators were installed in the summer and they said they had no trouble with cold rads last winter (before the loft conversion). Am I correct in saying that with the extra height that the loft radiators have, it has overcome the vacuum to send just the water from those loft rads through the outside tap as it has no dcv????
Hope this makes sense and thankyou for the help
I am currently doing a gas course at MET-UK so am still at a learning stage. I am looking for a placement (free!) from 30/11/09 in Derbyshire or Nottinghamshire.
Jon