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Irish

Plumbers Arms member
Plumber
Gas Engineer
Jul 17, 2011
896
367
63
Heathrow
Evening all The neighbour of where I'm working today asked me to have a look at their ch today said it's not getting hot in loft conversion, old system, been p flushed, boiler looks big enough too handle the work (at a rough guess), pump is on the ground floor right at floor level, pipe work looks good enough for supplies to upstairs. Would it help if I moved the pump to the airing cupboard on the first floor? as it seems a long way for it to try and pump it round
Thanks in advance
 
Yeah sealed system so shouldn't be airlocked and apparently the guy that did the plumbing already balanced it
 
Loft conversion often equals builders plumbing work,pipe runs to rads could be a bit imaginative !

imho
 
Haha true puddle!! But I can see it's nice neatly clipped 22mm running up in the airing cupboard but it could be a lot different under the lovely chipboard floor upstairs
 
No only had 20 minutes fiddle with it as I didn't want to br there all evening, what would raising the pressure do ?
 
Really better to rule out partial flow due to airlocks or balancing issue (despite it's supposed to be done).
If there is a hot water cylinder, make sure it has a valve to balance it, as the coil is a massive short circuit if not balanced.
Can easily be the pump unable to do the height. If nothing else obvious, & pump is not blocked, change pump to a new, compatable type for size of house & type of pipework & rads - ie restrictive or not.
I would suggest a 6m head pump for a
small/medium house. I have seen fairly new pumps in perfect clean condition suddenly unable to do the harder parts of a system & a new pump sorts it - can be a head scratcher as it is rare. I assume the pump motor was going slow.
 
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No only had 20 minutes fiddle with it as I didn't want to br there all evening, what would raising the pressure do ?

Raising the pressure would have the same affect as raising the head.

What is the system pressure at present?
 

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