Discuss speed fit on secondary return in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Load of nonsense I've used hep on returns for years with no problems its a lower temp than central heating and the pressure is 3 bar max, another bit of scaremongering about plastic yet again!
my choice is I'll still use it, I know somebody who had a leak on a soldered joint didn't stop me using them either
Clearly you have never been in or worked in a nursing or old peoples home, heating and hot water 24/7 365the manufacturers say no to a return that"s on 24 hours a day why would you install a system that runs through the night, it should also be on a stat to stop the pump running needlessly, then again you would know that being an experienced plumber
Because you can't on hot water due to legionaries, nursing homes are under intense regulation! As are other commercial applications......the manufacturers say no to a return that"s on 24 hours a day why would you install a system that runs through the night, it should also be on a stat to stop the pump running needlessly, then again you would know that being an experienced plumber
the manufacturers say no to a return that"s on 24 hours a day why would you install a system that runs through the night, it should also be on a stat to stop the pump running needlessly, then again you would know that being an experienced plumber
Technically plasticiser will leach out of system where water is always changing ,hence more brittle (less spring back to keep things sealed)
Sealed circuit (ie-Boiler) , plasticiser cannot escape gets re-circulated
( PURE Theory no experiece with plastic plumbing--)
Loss of plasticiser and enbrittlement == fact
Trade offs a) How hot
b) How much water thru system
c) How many years of life
d) How many hours a day pump runs
e) Price of install
Life whole system needs to last -vs- water thru system for effect to happen
Copper rules !
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