Hart Tank Tender system question

[andyv94]

I’m installing this system in my boat ( HC 33) and was wondering if any of you has already done this.

I’m trying to get an idea on the calibration of the diesel tank and the aft water tank.

[edelweiss]

WE put this on our 38T MKII this summer. Calibration was done by opening the inspection plate and adding 5 gallons at a time and recording the number of inches of fuel noted on the tank tender. We did the Diesel tanks but not the water tanks yet. Ideally you need a way to add diesel or water to one tank at a time. More accurate if you use smaller increments but also takes longer.
Mark