muymalestado wrote:
On Sep 17, 6:37 pm, "Tim Downie"
wrote:
Mick. wrote:
snip
Could this have enough pressure to use a bath mixer tap with a shower
hose fitting?

I think you'll be struggling with a gravity fed shower
Tim

Totally agree with Tim; from experience of header tank on floor above
giving a head of about 4'6", if that. This was not enough, until we
put in an Aqualisa. That gave lots of water at a low pressure.
Adequate but not ideal.

Complete re-plumb job eliminated header tank to make a pressurised
system. That is the way to go, if possible.

My query concerns a relation's flat in your situation. Could a single
electric pump power the cold AND the hot water from the header tank ?

if the pump is of sufficient capacity, it will empty the header tank
faster than it refills. And the hot water cylinder too. heap of crap are
those tanks. even a combi is a better option.

But a mains pressure tank is marginally cheaper than a combi of
decentish power levels.