To increase the water pressure in a home, check for problems in the pipes, the screen in the water line, the faucets, the valves and the pump. If the plumbing is in working order, test the pressure and install a pressure booster pump.
Many problems with low water pressure stem from clogged or broken parts in the plumbing system. Clogged pipes, screens or faucets can keep water from reaching the rest of the system, but these issues are fairly easy to fix. Simply unclog the them or replace the affected parts. Water pressure can also drop due to faulty parts such as pipes, pressure regulators, control valves or pumps. Fixing or replacing broken or corroded parts can restore pressure to the plumbing system.
If the house is new, the pipes have recently been replaced or there are no visible problems in the plumbing, the problem could come from the water supply itself. Some cities have low water pressure in the lines, and houses built above water sources can have weak pressure, as water must travel upwards to get to the home. To see if the pressure is weak at its source, connect a pressure gauge to one of the home's outdoor water spigots.
If the overall pressure going into the home is weak, increase it using a pressure booster.