Currently I have a hot water tank and a pump that powers 2 showers. Water pressure on the showers is great (3 bar I think the pump is) however the pressure on the hot water at the upstairs tap isnt great due to gravity (downstairs is fine). The main downside with the water tank is obviously that it can run out of hot water. There are 2 adults and 2 kids (6 and 2). Im extending the kitchen and will be moving the boiler into the garage so thinking of whether its worth replacing the water tank with a new one as its >25 years old or looking at another option. I dont think I'll get much longer out of the boiler either as its been patched up a few times already. I think my options are: 1) replace with a new hot water tank, perhaps a larger size for when the kids grow up as the current one runs out at the end of a 4th shower if we have guests staying. 2) replace with a pressurised system. Benefit would be good pressure everywhere but probably the most costly option I think? 3) change whole set up to combi system. Benefits from on demand water but assume pressure would be lower at the showers and wont run 2 showers at the same time which may be a deal breaker for business mornings now I come to think of it. Any feedback on the above? Is there anything Ive missed or not thought about?