I guess technically speaking the tank will be on a stand, the stand will be attached to the wall on both sides where the wall was that I cut out. The wall that was there was just temporary, it was mad of 2x4s and would have been right in the middle of where the stand is.
The majority of the stand is done, I just need to put plywood sheeting on the top and attach it to the wall. I also need to put cross pieces on the bottom and plywood on top of them as well. Originally I intended to have the sump under the tank but I think now I will have the sump sit somewhere against the back side of the tank. The overflows on the DT are in the back panel near the top so my plan is to set the sump up so if is at an easier height to work in.
QUESTION?
The manufacture requires one sheet of ¾” plywood for the warranty and recommends two sheets of 3/4” plywood with a sheet of of extruded polystyrene foam in-between the top sheet and the tank. My question is this over time (5, 10, 15 years) how much will the tank settle into the polystyrene foam.
Top of the stand.
Stand upside down.
Stand more or less in place.
The stand is all 2x6s except for the corner post which is three 2x4s in a “U” shape. There is six inches between the top cross beams, and twelve inches between the side posts. The end that faces away from the wall has a 19.5 inch gap so if at some point I decide I want to put a sump under the tank I can cut the sheet rock and slide one in.
Question?
Structurally do you guys/gals think that leaving the gap on the one end is safe?
As always comments, critiques, and feedback are appreciated.
Thanks for Looking!