That's really not what is meant by running the pump dry. A few minutes with no liquid in the volute is unlikely to do any harm. OTOH, running it dry for an hour or more is an entirely different matter. I wouldn't do it intentionally with the March, LG or any other brand, particularly for extended periods and it's probably best to avoid dry running whenever possible.
Explain something to me about March pumps please.
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That's really not what is meant by running the pump dry. A few minutes with no liquid in the volute is unlikely to do any harm. OTOH, running it dry for an hour or more is an entirely different matter. I wouldn't do it intentionally with the March, LG or any other brand, particularly for extended periods and it's probably best to avoid dry running whenever possible.
I know. My point was, in fact, to demonstrate exactly this: that a few minutes with a wet head and no flow is not going to kill the pump.
I've valved it off and left it going for about 5 minutes before.
Can't comment on the freezing as we don't have that problem down here.
I'd like to mention that dropping this pump is not a good idea. The threaded nipples like to break. Just saying. You can find replacement heads on Ebay for $25.
I just picked up a used TE-5-MD-HC for $75 shipped. 1/8th HP. If that ***** doesn't get the whirlpool going, nothing will.
willynilly
Well-Known Member
That will. The LG 3-MD-HC will almost throw the wort over the side of the kettle when whirlpooling, and it is 1/12hp.
I am beginning to see that these higher flow pumps do place a much greater pressure on the hoses between the pump and the valve. If you are going to restrict the flow on these higher flowing pumps, Id try to engineer it so the valve is on the pump itself. Silicone hoses are not real high PSI hoses to begin with.
This will save your hoses and save your face from being melted off if a hose bursts or pops off a fitting. IMHO
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