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Ok…received the PoolLab 1.0 and reagents. Performed Chlorine, Combined Chlorine, Alkalinity, Calcium Hardness, CYA and pH using my TF-100 kit (w/ Hanna Instruments pH probe) and the PoolLab 1.0. Performed tests on 2 different days, 3 days apart. (Note. PL 1.0 tests total chlorine, so CC...

So…having a bunch of chemical reagents on hand is “reasonable”, but a gallon of distilled water is crossing the line? Dilution of a sample and using simple math happens to be a very common method to get a reasonably accurate reading of said sample when the concentration is over the tests...

Yep...heater is only energized when the pump is. And the pressure sensor in the heater also cuts it off w/o water flow. thanks!!!

So, I’ve set this all up. Pool sensor and outside temp/humidity. It’s all up and running. I now want to somehow automate my pool heater to kick on @ a certain temp, then kick off a a preset temp. It’s an old Pentair Propane heater. It works fine, only the thermostat controls are garbage. I...

You mean a second ‘Outdoor Probe Basic’ unit as the second sensor for outdoor temp?