If any bit of equipment is not going to be used in the next few months I get the fuel out and if its a steel tank suck it completely dry, spray bit of oil in helps and same with the water side but you must not get oil near any part of the rubber seal. Just after the much used Alcon primed and with two engines running didn’t twig which of one of them made for a split second a funny noise, at the time I was striating the hose out as they knuckle and stop the water but now looking back can see why water slowed and went, I recon it was a hand full of hazel nuts the mice had carried into the suction pipe as the jet of water slowed but hose was still hard with pressure, had to knock out one hole nut out and found it in the bottom of the trailer while laying the pumps up. I have repaired a few pump housings caused by objects getting sucked up the suction pipe, one time found wedged in but not got in to do damage was a petrol lighter.
