Discuss speed fit on secondary return in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Like in my mums houseSo if central heating was on 24/7 365 days a year?
I work in loads Simon, and yes they are on a lot, but not 24 hours everyday, maybe the fresh water has an effect too, all I know is what I have seen, not good....Nursing homes etc. Or is that exempt as it's not oxygenated in the central heating.
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!
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!
Well... No problems until one occurs! Not suggesting that there will be a problem, of course, but if one does, no manufacturer will honour the warranty, and your insurance will be void. It's like any regulation or precaution - it's not there to cover the 99.999% of situations where nothing goes wrong, but the 0.001% of the time when something does...
You make your choice and take the consequences - you're a braver man than me!
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 !
Think your theory is wrong, seen plastic that has been used for dhw that is 25 years old and is still ok, not brittle at allTechnically 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 !
dhw that is 25 years old and is still ok, not brittle at all
don"t even understand half of what you just posted
Insulation on cable is PVC and should not be painted with gloss and is not the same material as plastic pipemay not have seen effects of plasticiser in pipes ,but seen it leach out of cables and damage painted surfaces -within a year-
Has water running through it every time tap is turned....you been on the pop ?But did that water keep getting mixed/re-circulated with 210 litres of fresh water ,ready to soak up more plasticiser ?
Has water running through it every time tap is turned....you been on the pop ?
been on wikipedia more like!
If it leeched into water it would be bannedThe total no. of litres flow at final outlet ,must be nothing compared with continuous replenish hot with hot that happens within pumped secondary return , that stays hot so boosts leaching effect
( any YES Cider )
You lot still arguing about this?!?
It's Sunday evening, who gives a tish!!!
It"s a choice between this and speaking to the missus thats why I"m prepared to argue all night if i need to:skep:
don"t use it on a continuously circulating return maintained at a constant high temperature,
I"d love to know how you service a plastic pipe?
I"ll choose to ignore it as I dont do nursing homes
personally if the manufacturers say dont use it, I wouldnt, as come the day it fails, you are in the pooh as the installer who has to defend your actions.
You lot still arguing about this?!?
It's Sunday evening, who gives a tish!!!
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
Stop trying to keep your post count up Tom!
I'm bored.
I'm Carol Borederman
I'm Boreder collie
You're borderline
Feels like I'm going....
To turn into a superhero ​by any chance ? ;-) ;-) nudge nudgeFeels like I'm going....
Reply to speed fit on secondary return in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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