-> Just what kind of pump can one use that will tolerate the hot
-> temperature and high pressure of most water systems?
That's the strangest part of all, Lewis!
The pump that's most often used is a strange little toot with the
impeller sealed inside the pump body, rotated THROUGH the housing by the
magnetic field.  In other words, no shaft, no seal, little wear, and
substantially no problems.  It's rated at 1/16th horsepower and draws
only about half an amp.  It also costs a lot more than I wanna pay....
 ^..^
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