yoccm
New member
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DON'T Shim the Tank!
If you add another board ontop it will eventually settle into the opening there now.
You kinda have two options. Pull the plywood up and re-level the framing.
or Sand down the high spots and level out the lows with polyurea style epoxy resin or similar.
Third option is best. Make yourself a big pitcher of lemonade and watch your contractor fix his mistake!
Bummer scenario, if you had a rimless tank this part of your thread wouldn't exist, 1/2" styrofoam works perfect on rimless tanks.
I think I will try to jack up the 2x8 to shrink the gap and then pound in a vertical upright to hold it. I can then assess the remaining gap and go from there.
How much of a gap becomes too much??? I would assume most stands have some amount of gap that settles out when you put the weight of the water in the tank.
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