I use a typical SS sap tank. Mine is 150 gal and it sets outside on a platform attached to the north wall of the sugarhouse. It is high enough that the bottom of the tank is about 20-24" higher than the top of the float box on the flue pan. Sorry no pictures. I made the platform using 4x4 posts 3' in the ground, and the edge at the sugarhouse is screwed to a 2x4 attached to the sugarhouse wall. The tank is small enough that the 8x12' platform leaves room to lift the SS cover and wash the tank. The tank as I said is butted tight to the sugarhouse. The valve is in the sugarhouse, about 3" inside the wall, then I have a tee, pointed up with a reducer /adapter and I use a 3/8" vinyl hose connected there and extended up and over the top of the gable end wall and then outside, back down to about 4' from the ground. That is used as my site gauge for sap/concentrate level. I have a few marks on it, one at 6 gal, one at 12 gal and one at 18 gal. The 18 gal is where I stop fueling the fire. Then I have a line at 50 gal, 75 gal ,100 gal and 125. The 6,12 and 18 were measured by dumping that amount of water in the tank. The rest were marked as I pumped water in from a IBC tote, using the gal marks on the tote.
Dave Klish, I recently ordered a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.