Shower pumps

Will_it_make_me_rich

I’ve just bought a mixer shower that requires a min of 2bar pressure. I have a gravity fed system with the water tank above the cylinder.
I know then that unless I move the tank I will need a negative pump.
As well as changing the bathroom we are having an extension, eventually (probably next year) we will want another mixer shower for an ensuite.

My question is can I use 1 pump to supply both showers or is there a general rule that you should use a pump for each shower?

If the second shower also required min 2bar pressure would a 4bar pump do if both showers were used at the same time?

Also do you know of any good websites/makes for pumps?
I could do with some advice about size of tanks, cylinders, water usage, etc.

Canucklehead

Hi

Here you go ;http://www.stuart-turner.co.uk/

Corgi guy.

plumb1_2

Best pratice to use 2 seperate pumps. Be aware that you will need a min 50 gall CWS tank

ormus

best practice and prob a lot cheaper too.

Happy_frank

The other alternative is a whole house pump, very much like a shower pump but better flow rates and also a mechanism to prevent damage to the pump if you just run one side of it. ie. just the hot or just the cold.

I was recommended one when we installed our power shower and have been very pleased with it. It means all of the hot water supply in the house is under pressure.

You will find most moden taps require a greater presure than is available from a gravity feed system as they are designed for the continetal market where the hot supply is normally at mains pressure, a whole house pump solves this problem.

ozskin

stuart turner good look at salamander also i think now a superior pump and quieter. if you just want to run a shower then you will always have a mixed supply so no need for a whole house. perfectly possible to split or use 2 pumps but your big issue will be capacity. have you considered changing to a mains unvented tank. it may well work out similar to 2 pumps in cost and solve all of your probs esp if you tanks are of a certain age anyway. have specced this for many clients and its what i use at home

Will_it_make_me_rich

plumb1 wrote:

Best pratice to use 2 seperate pumps. Be aware that you will need a min 50 gall CWS tank

I think we will need a bigger tank.

considered changing to a mains unvented tank

Our heating system is only 18 months old, would it just be a case of changing the cylinder?

ozskin

you lose the cold tank and replace the hot tank but at 18month may be a bit prohibitive but worth costing it