I don`t think its damaged,might be,but I doubt it.Quite a few members are having problems.
A seperate power source or pack to give extra amperage might be it.Controlling garage doors
from mains electric,people won`t have problems I bet.Regarding pumps,hold everything.When
a pumps running,stop the flow and the pump will blow up or burn out because of build up.
If a pressure switch is fitted,fine ok, the pump will automaticly switch off.Don`t whatever start
bending pipes or putting clamps on,or anything to stop the water flow.In the the main anyone with
pump queries should really contact the makers (usually FloJet or ShurFlo ).That pump Jeff Brimble
reccomended,its a smashing little pump,works and runs like a train for me anyways.
Lewis Doubtfire, Gleem Clean ( Blade Runner )