In article ,
Christian McArdle wrote:
By the time you've diagnosed a pumping over/venting/feed issue in an F&E
system and attempted fixing the thing for the xth time, you might as
well have just chucked the lot out at the start and replace the tank
with a sealed system kit that just doesn't have these issues. The
conversion kits cost around 40 quid and are a simple fit with only basic
plumbing required.

Hmm. Have you counted the number of recent threads where people are having
problems with pressurised systems? Of course if the OP's system is so
badly installed it has fundamental problems then it might be the answer.
But I'd make a start at balancing it and turning down the pump before
spending any money.

--
*Toilet stolen from police station. Cops have nothing to go on.

Dave Plowman London SW
To e-mail, change noise into sound.