Home DIY

Options are:
Run a combi boiler= mains pressure at all outlets
Pros: good pressure, maximise storage
Cons: pressure drops when two or more outlets open
Run a pumped gravity system (sounds like this is what you have)
Pros: good pressure
Cons: noisy, more things to go wrong
Run an unvented cylinder
Pros: good pressure with multiple outlets open
Cons: takes up room, overkill for properties with one bathroom

thanks, we had a new combi boiler put in less than a month ago and pressure has improved but as you say drops massively if for example you flush the toilet and then try to run a tap. So is the only option to install one of the legal mains pumps? any ideas how much that would be? and is it worth it?