Can I run a combi boiler from a water tank?

[Mark300zx]

I live in a first floor flat, the mains water pressure is falling and my combi is struggling to produce decent hot water shower pressure. But my water tank gives great pressure, so could I feed the how water from the tank to the combi and cold shower water from the mains?

[Mark300zx]

I always though electric showers were meant to be slightly poop, need a combi for heating.

[Mark300zx]

It is a shared tank in a block of 6 flats, 2 storeys above the flat.

[Mark300zx]

I think it is still within the Thames Water minimum pressure and the shower is still useable!

[Mark300zx]

Lower than it was, would be the correct phrase.

[Mark300zx]

Because my kitchen cold tap has lower pressure.

Edited by Mark300zx on Tuesday 18th October 22:49

[Mark300zx]

I have the power just not enough flow.