![]() No other pump in the Keene lineup has that sort of setup now, and nobody else has for many years, if ever. Really though, the old P-180 pump is just a leftover of days gone by. But if you always left your intakes in sand bars I guess it could be an issue. More often somebody loosing a screen and plugging the impeller with rocks, and even then no damage done. I serviced a lot of pumps for people over the years and never really saw much sign that impeller abrasion from sand was an issue. However, if you have to suck lots of sand through a pump for some reason the Keene adjustable plastic intake does allow for wear and adjustment. A good high pressure fire fighting dredge type pump should be built to best do what it is designed for, and that is to give you the most suction power possible in the lightest weight most fuel efficient design possible. If people need to suck sand and gravel through a pump, that is what trash pumps are for. The pump is supposed to pump water, and sand and gravel goes up the main suction line. ![]() Old Keene pumps were simply inefficient and they have improved over time. The pump intake should always be kept out of sand to reduce wear - mine stayed bungeed to the bottom of the floats. Any gap between the impeller and inside of the intake area is non-productive. ![]() The water is supposed to go into the middle of the impeller and get slung around the outer part of the housing and out of the pump. I don't recall anyone else ever having anything except metal intakes. I don't think Proline, Dalke, Precision, or anyone else making high efficiency pumps would agree with that.
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