Ive a 25ltr trolley with a Shurflow pump. Its been a good trolley but has stopped pumping. When you turn the controller on all looks good but no sound from the pump and no water comes out. But. When you tip the trolley steeply on its side the pump starts and water starts to come out. You have to do this several times sometimes to make it work. When you tip the trolley back towards upright it stops? So. Whats wrong with my trolley?
Any help appreciated as its sending me mental.
Stu