I just bought the exact temperature controller off eBay. With the same little probe. I'm going to try getting a compression fitting similar to the ones that come with the pt100 probes from auber and screw it into a tee on the low pressure side of the RO.
Did you find a different probe or did you use the one that came with the temp controller?
600 taps on vacuum
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CDL electric releaser
2.5 x 10 CDL Venturi ( new for the 2024 season )
Home made modulating auto draw off
Homemade RO 2 x 4" membranes
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Wesfab 7" filter press
Delaval 73 vacuum pumps
12 hives of bees