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Apr 19
th
, 2024, 10:29pm
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domestic hot water pumps (Read 2306 times)
ynot47
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Whats that noise?
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domestic hot water pumps
Aug 6
th
, 2004, 7:27pm
I'm fitting a pump on the hot water supply.
Question is do I need to fit a non return valve on the expansion pipe to prevent air being drawn into the system when the pump cuts in?
Pump is in the airing cupboard and there is approx 12 feet of head above the pump.
Any help would be appreciated
Tony
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PEDANTICVINDICTIVEMAN
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Cant talk,old folks to
rip off and tanks to
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Re: domestic hot water pumps
Reply #1 -
Aug 6
th
, 2004, 8:01pm
Dont put any valves of any type on the expansion pipe, if it jams, oeeeeeeerrrr.
Follow the makers installation instructions so as not to suck air down the pipe.
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thescruff
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Re: domestic hot water pumps
Reply #2 -
Aug 7
th
, 2004, 12:38am
Had this once before on the PP forum.
Non-return valve = cylinder implodes if air cant get in
.
scruff
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