I finally got some time to play around with the pump some more. The noise coming from the head is really weird. If I wrap my hand around the tubing thats on the outlet of the pump the pitch of the loud noise drastically changes. Almost sounds like something is rattling around the head/wheel thingy. Guessing its just turbulance but man its loud. What would the damage be if someone turned it on dry? Would their be visible damage to the head or to the magnet sealed inside the head or both?
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