[alticry]

Shurflo 100psi pure freedom trolley pump . Pressure comes and goes , takes an age to get going as if there is air in the system . Have pump off and cleaned diaphragm , still not right . Iced up in cold weather last week and put it on then off quickly as I realised it was iced up . Could this be where the problem arose ? Anyone any ideas to fix it before I purchase a new one . Help !

[Tony Edwards]

Could be pressure switch


Get new from maplins £2.50

[alticry]

Thanks Tony , sounds worth a try .

[windowswashed]

You could always fit non return valves on hoses so you're not waiting around for water if it backflows

[Michael Peterson]

have you got a link to this switch mate

[alticry]

Couldn't find maplins switch . Best value I could find was pure freedom for £20 .

[H20cleaning]

Take the pressure swich into maplins and match it with it, i bought one exacly the same but it had one extra terminal on(wich i snapped off as it isnt needed) im sure there will be a perfect match.
Failing that it could be your strainer before the pump blocked.
Battery low, or a air lock

[Tony Edwards]

have you got a link to this switch mate

http://www.maplin.co.uk/p/low-cost-standard-microswitch-gw71n

Was helped by H2O with this link