As the most common plumbing system in the UK, gravity-fed systems rely on the natural fall of water to create water pressure and flow. If your home uses this system, you will have a cold-water tank, usually in the roof space or loft.
In addition, hot water is heated by a boiler and stored in a hot water cylinder, which is usually lagged and located in your airing cupboard.
Salamander have a number of pumps that can help improve your water pressure in a gravity-fed system. This includes the CT Xtra, CT Force, ESP, RSP and RHP ranges.