Shower pump information

Hi jm123. I assume from your post that your Worcester is a combination boiler which supplies your hot water. If this is the case then you cannot fit shower pumps to a mains water supply. You can fit a mains booster pump to the incoming main which is relatively easy and cheap to fit but this is limited by law to 12l per minute and may or may not improve the situation (Stuart & Turner flomate) . Combination boilers are limited in the amount of hot water they can supply and are only as good as the incoming water main. I am also assuming that your incoming main is a standard 15mm supply so if your cold supplies are fed from this then the same problem will occur on the cold. There are options to help with your problem depending on how much money you want to spend but you will need a flow/pressure test on your incoming main and a good plumber to assess your installation and advise you from there. Some of your options would be a bigger incoming water main, a Grundfoss Homebooster, or an unvented hot water cylinder linked to your combination boiler. None of those options would be cheap. Hope this helps. Good luck.

Do you have a combination boiler? If so, a pump wouldn't work. Your boiler can only give you as much hot water it can produce in litres per minute. Water will always choose the least form of resistance so an open tap onfloor 2 will flow nicely but open one on floor 3 and the water will dedicate floor 2, due to pressure and flow. Adding a pump will literally suck water through the boiler from the mains and i wouldnt recommend. Have a hot water cylinder installed where possible and pump from that. Megaflo are pressurised cylinders which wouldn't require a pump. A gravity cylinder, along with a cold water tank can have a pump fitted to it to give you power showers. There are ways to pump boost your whole house but I'd start with the flow rate per minute that your boiler can produce along with your mains pressure tested.

Sounds like you would need an unvented hot water unit such as a megaflo. Combi boilers are only designed for 2 bathrooms at best. The biggest you could get would be a 42kw which might be adequate but an unvented unit would give you mains pressure at every outlet at the same time.