instinct2
Well-Known Member
?... I have an extra Johnson A419 unit laying around. I have a Herms system with 2 pumps. My brewing partner and I have been contemplating spending the $ on a gas control panel, but $1k+ we can't justify the cost right now. Possibly doing a little automation could change our thoughts... So, we're contemplating connecting our herms pump to the extra A419 and submerge the temperature probe in the middle of the grain bed. We would run the HLT near mash out temps, allowing us do step ups easier and sparge water would be ready instead of ramping it up before the sparge. The pump would kick the herms on when falling below the mash temp desired. Our concern is the A419 cord doesn't look liquid tight and would temps up to 170 degrees screw up the probe? Is there a different probe we could purchase for this type of use? Thanks for any help or what you have done.