Water pressure drop in bathroom when downstairs sink is run

[ama3ahmed]

Hi,

As some of you may know I'm renovating my house. As part of this I am having the whole of the pumbling system redone. Currently when I am running a bath or having a shower the water pressure drops as soon as someone runs the kitchen sink hot water tap downstairs - is there any design tips, any type of pump I could buy that stops this problem? I am also putting in an en-suite - so there will be a higher demand for water.

In terms of boilers, I am planning to put in a Vaillant Eco Tec Plus 937 Combi

Thanks in advance

 

[ianniann]

Is it just the hot water pressure that is affected? Is it currently running off a combi or a cylinder? How high up is the cylinder?

 

[ama3ahmed]

Hi,

Its a combi