Shower Question - Mains cold, tank fed hot

[RossKettle]

Hi,
I live in a 1946 ex-council property with an extension to the rear. We are looking to fit 2 new showers.

Shower 1: Upstairs - tank fed hot and cold feed from header tank - seems straightforward with a twin booster pump and thermostatic mixer

Shower 2: Now it gets complicated, downstairs in the extension, tank fed hot and mains cold? Plumbing in a cold feed from tank in loft is a no no.....

So, do I fit a whole house hot water booster pump and fit the 2 mixers with the mains cold feed, or do I fit 2 separate shower boosters, one twin booster for the upstairs shower and one single booster for the hot downstairs. Would the thermostatic mixer downstairs (pumped hot, mains cold) cope with a flushed toilet?

HELP!!

Thanks in Advance

Ross

 

[HERTS P&D]

You don't want the toilets pumped because when someone uses the toilet at 2am the noise of the pump will wake everyone up.


Andy

 

[polesapart]

Bite the bullet and run a dedicated cold feed from the loft tank to the downstairs shower or try a venturi shower.

 

[Charnwood]

try a venturi shower.

Like the Trevi Boost.
http://www.ideal-standard.co.uk/InstallationInstructions/trevi boost TS22.pdf

 

[RossKettle]

OK, I have looked a the trevi boost venturi and this looks great, and could be the solution. Thanks guys.

Will it be OK to run it off the downstairs utility hot supply? It says in the pdf that it needs to be the first hot supply, but there is no way I can plumb in a new hot (or cold) feed to the downstairs?

Thanks

Ross

 

[tonyo]

Have you had a look at the Aqualisa digital showers, with one of these you only need the 1 pipe to the shower and all you would have to do is to find a way of getting the data cable from your shower room to the pump which would take the hot supply from your hot tank and the cold from the cold tank