Denny Gibson
Member
After discovering several articles describing construction of a Parkerizing tank made from PVC pipe and a hot water heater element. I built one out of sched 40 3" tubing. The temperature is controlled with a digital water heater controller. I did my first tests with just water seeing if the rig could control the temperature at 170, 180 and 190F. The good news is that it did but I think there's a problem I didn't anticipate: after the temperature reaches its set temperature every time the temperature drops enough to kick the heater back on the water in the bottom of the tank boils periodically, only stopping when the controller shuts off again.
The temperature sensor is not submersible so it's placed just below the very top of the water level to avoid submerging it. I'm wondering if submerging the sensor to around the middle of the tank would help. It seems that to raise the temp at the top of the tank the water near the element must be boiling ... maybe sensing closer to the element will reduce/eliminate the problem?
Also ... will it cause Parking issues if the solution boils from time to time?
The temperature sensor is not submersible so it's placed just below the very top of the water level to avoid submerging it. I'm wondering if submerging the sensor to around the middle of the tank would help. It seems that to raise the temp at the top of the tank the water near the element must be boiling ... maybe sensing closer to the element will reduce/eliminate the problem?
Also ... will it cause Parking issues if the solution boils from time to time?
