Recent content by Breesey

Look at the valve. Powerflush is irrelevant here.

It's probably a zone valve switch sticking. Does the boiler fire occasionally too?

Bet it's not sleeved where it passes through the walls?

Do you intend to do it yourself?

You mean basin! It's possible but it's the landlord's property so if he doesn't want it done, find another room with a basin! :wink:

Only one of the showers is pumped.

Xr4x4 has given you the answer to this. You would ideally have at least a 50 gallon cwsc feeding the hot cylinder.

Not following the guidance on notching joists is though!

That's not really the point John. The water regs aren't really bothered about the salt content of bread! But they do set a maximum sodium level, above which 'softened wholesome' water ceases to be wholesome.

Not true, indeed, while sodium levels are below the limits for wholesome water, softened water should be tested for sodium content before it's supplied for drinking. It may just be easier to take off drinking water before the softener; as the regs guide advises...

At the risk of stating the obvious; does the OP realise that the main kitchen cold tap should be supplied with un-softened water? He did say he knew nothing about softeners, so just saying!

And an AAV is only an option if the system is vented else where

He doesn't only want to pump the hot. He wants to pump hot and cold to one shower! Placing the pump on some sort of insulating material (like carpet) will reduce noise transfer through the ceiling. You won't silence it completely and don't think about building a box around the pump to quieten...

That's quoting a flow at a certain pressure. Flow rate isn't measured in bar. I think you may have found a typo which coincidently and unfortunately appears to match your requirements - it should say flow rate at 0.5 bar =13.3 l/min. Could you pump it?

Probably M3.