I have a Victorian terraced property with a feeble water supply - 10L per
minute (via 1/2 inch lead pipe), as measured at a kitchen sink and confirmed
by the local water company. I will be putting in GCH soon - there is none at
present (I'll probably put the radiator circuits in myself - Speedfit or
similar under floorboards!). So there is to be a new a new boiler - t.b.d.
but not a combi. I want to do 'something' about my feeble water system at
the same time, probably getting rid of the old on-demand 'Main' gas water
boiler which is in a bedroom wardrobe. But I won't be upgrading the mains
water supply from the street.

There are two WC's and one bath/shower. The (thermostatic mixer) shower is
just about adequate, but turning on multiple outlets (incl filling the bath)
is hopeless!. The main thing is to get a decent flow when 1 outlet is
turned on, though improving the pressure/flow to hot and some cold taps (eg
bath) and particularly the existing shower would be a bonus. I don't want to
spend too much ( ~500 ukp on top of CH & boiler would be good).

The obvious thing is to put a big cold water tank (or tanks) into the loft,
which is large with good access. This to feed a new HW cylinder &
non-potable cold water outlets, via a pump in some way.

Are there any other options I should consider?

I've read numerous posts in this area, as well as the faq, and there is
indeed a lot of very good information - probably too much to completely take
in!. As far as I could tell heatbanks, thermal stores and the like fall down
on my low water pressure and/or my budget but tell me if I missed anything.

Thanks,

Paul.