I know that I'm going to have to take the top off and clean it out, but I can't understand why I can't get any water to flow.
So, on my 1980's refurb the water tank is under the well deck. The water inlet appears to come from very near the top. I've just finished the cold water plumbing and want to test it. I've put water into the tank, don't know how much, but the hosepipe was on for about 20 minutes. Turn the stop cock and there's nothing flowing, also, the pump will not suck any water in.
Took the pump apart and used an air blower to force air back into the tank, water then flows, but only for a couple of seconds - but this is only if I've replaced the filler cap. It appears that my air blower is pressurising the tank and then that is what causes to water to flow, but only 'till the pressure has gone.
Any thoughts or ideas? Could it be that there is a siphon pipe in the tank and this will only prime if the tank is full? It's obviously not blocked.
Thanks for any advice, Kevin