More grrrumps with my water system

Joined
18 Mar 2010
Messages
70
Having taken my water system apart to discover why I was getting continual grrrumps from water pump I find that I had two pressure relief valves on my calorifier. At the top is a standard domestic 3 bar one (with the red cap) and on the side an adjustable Gresswell relief valve which was leaking and the cause of the problem. I went to my local plumbing merchant and asked about the latter - "I haven't seen one of those for a long time...."
So why two pressure relief valves? I'm tempted just to go with the one standard domestic valve - any views on this??
 

Yngmar

Well-known member
Joined
6 Dec 2012
Messages
3,051
Location
Gone cruising
Without having seen it, could one be for the freshwater and one for the coolant circuit?
 

RichardS

N/A
Joined
5 Nov 2009
Messages
29,240
Location
Home UK Midlands / Boat Croatia
Sounds like someone being over-cautious in case one valve seizes in the closed position. In practice, the problem is always the opposite so your removal plan is a good 'un.

Richard
 
Top