pump advice for a gravity fed system

[fishhead]

Hi all,

Please can i have some expert advice. I have a gravity fed system and i've just bought a lovely mira digital low pressure shower system that comes with a pump specifically for gravity fed systems. This pump will just provide pumped water to the shower.

As i'm also in the process of re-modelling my bathroom i'd like some new bath valves/taps and a bath waste filler. All the ones are like are not compatible with low pressure systems so i'd like to buy a separate pump to feed the bath and sink.

How do i configure the pipe work so that i can have 2 pumps without either one affecting the other?

i'm happy to run a separate cold feed from the tank in the loft to the shower pump but what about the hot?

do i need to use non return valves and if so where?

I hope this is clear. Any help or steer would be greatly received.

Thank you

 

[SimonG]

Do you have sufficient stored cold water?

 

[Unregistered]

Yes I have two large tanks which are linked in the loft.

Thank you

 

[itcanbesoeasy]

Yes you need a separate cold feed from the tank and a separate hot feed from the cylinder using a surrey flange which you put in the top of the cylinder


https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=surrey flange wickes

 

[Lofty24]

Yes I have two large tanks which are linked in the loft.

Thank you

Can I put a second feed on the header tank until it enters the cylinder to increase the flow?

 

[Lofty24]

Can I put a second feed on the header tank until it enters the cylinder to increase the flow?

 

[lame plumber]

Can I put a second feed on the header tank until it enters the cylinder to increase the flow?

flow to where?, best start your own thread

 

[Lofty24]

From the Header tank to the vented hot water cylinder to give added pressure to the system. for domestic hot water to taps.

 

[Ric2013]

Fishhead:

Why, if you are refurbing the bathroom, are you using taps that aren't suited to low pressure and then fitting a pump? Would it not make more sense to use taps that ARE suited to what you have?

 

[Unregistered]

Thank you so much for such clear concise advice. This makes sense thank you.

 

[Unregistered]

Ric2013. All the taps I like only seem to be compatible with high pressure systems (not gravity fed) so if I put a pump in this will give the high pressure I need - will it? Surely a pump is the best way to go? I'm very open to advice as I'm a novice. Thank you

 

[rpm]

Personally I would keep looking for taps, not sure the noise of a pump will be to your liking.

PS. I am sick to death of the sound of mine.

 

[Unregistered]

itcanbesoeasy. Thank you for your clear advice. I think I'll go down this route.

 

[SimonG]

Two pumps. One for hot and one for cold. If you try using a twin impellor the seals will go.