I have a Ferroli DOMIcondens, F28
which constantly loses water pressure. To gain it back i have to use the knobs underneath to repressure it.This now has caused the valves to leak so loosing water from the system, and suggestions please and whats all this about bicycle pumps?

mark woodward, January 2013

Constantly loosing pressure.

YOU have a leak.
Somewhere on your system you have a leak, like it or not, That is the ONLY reason.
BUT as you say the valves are now leaking aswell, They will need replacing. Will not help if they are leaking

SD, January 2013