Float switch how to?
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Yes, but first you have to crack the toilet.
Are you saying to use a toilet mechanism? Can it withstand the temperatures of an HLT?
jeffmeh
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I cannot answer your question regarding a build, but you could modify a pressure sensing switch with silicone tube and a copper pipe so that it would withstand the heat.
If you are interested, I have a used one of these that I am willing to sell for about 50% of a new one.
http://www.spectrapure.com/St_alc_p1.htm
If you are interested, I have a used one of these that I am willing to sell for about 50% of a new one.
http://www.spectrapure.com/St_alc_p1.htm
I might take you up on that if I can't figure out how to make one.
jeffmeh
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If you go with a float rather than a pressure sensor, you will likely need a stainless, brass, or copper float. If you go that route, be sure to get a temperature rating. I believe that Honeywell makes stainless ones rated to 90C. I would be concerned that if you exceeded the temperature rating you could end up with some shrapnel.
It will be cheaper to just go ahead and buy a switch for about $12, then fabricate a piece of cpvc or copper pipe with 1/8" female threads to attach switch. Here is a link to McMaster for a float switch http://www.mcmaster.com/#50195k93/=56uuk7. Next question is what you want to control, sparge water into MLT, HLT fill, Etc.
sjlammer
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I am actually thinking of a more mechanical switch. I don't have a pump, just use water pressure. I want the water to stream to the HLT when the level drops below a certain point. And to stop flowing when it reaches a certain level. Very much like the toilet mechanism mentioned above, but I am not sure how to find one that is temperature tolerant and can be alter to fit a HLT.
