We have recently had a Salamander CT50 pump fitted. When the shower is turned on it works OK for around 30 seconds and then cuts out. If the temperature is adjusted it will come back on for 10 seconds or so but cut out again. The pipework is the correct size and according to the specification the water tank is of the correct minimum capacity. Salamander's technical helpline have informed our plumber that with the minimum capacity tank the shower will work for 20 seconds only. Surely this cant be correct? They have advised that we should have a larger tank fitted, but before going to all that extra cost is there anything else that we can try? If the specification says our water tank should work then surely the shower should work for as long as we want it on?
Can anyone help?!!