Hi

We have just installed a pump (1.5 bar, Varispeed 50) to increase the
pressure of our shower. However, although the pump does increase the
pressure, the change is quite small and the pressure in the shower is
still low. The plumber tells us that this is because our pipes are too
narrow to feed the pump at a high enough rate. Could this be the
explanation? Is there anything else we can try? The pump is positioned
less than 1m away from the shower, close to the hot water cylinder. The
cold water tank is in the attic.

cheers
Barry