Mr31415
Active member
My concrete floor drops about 1.5cm (just over 1/2") over a length of 2.7m. My large 480g tank with a square tubing metal frame is standing on this floor.
I used plastic shims of about 1mm in thickness, cut to roughly 1.5 x the width of the square tubing, stacked at about 30cm intervals between the steel and concrete.
I have a stack under each corner, one on the short far end of the tank in between the two corners, and then like I said about 30cm along the sides - gradually becoming less stacked as the incline becomes less.
On the far end there are about 15 plastic squares stacked underneath each corner. My questions are:
1) Would this cause hot spots on the cement when carrying 1.8tonnes of water and thus structural problems? Or would the concrete handle this.
2) Would this put undue stresses on the square tubing frame enough to break the bottom of the tank eventually once filled? Assume it has been leveled as good as one can with a clear hose filled with water as level indicator.
I used plastic shims of about 1mm in thickness, cut to roughly 1.5 x the width of the square tubing, stacked at about 30cm intervals between the steel and concrete.
I have a stack under each corner, one on the short far end of the tank in between the two corners, and then like I said about 30cm along the sides - gradually becoming less stacked as the incline becomes less.
On the far end there are about 15 plastic squares stacked underneath each corner. My questions are:
1) Would this cause hot spots on the cement when carrying 1.8tonnes of water and thus structural problems? Or would the concrete handle this.
2) Would this put undue stresses on the square tubing frame enough to break the bottom of the tank eventually once filled? Assume it has been leveled as good as one can with a clear hose filled with water as level indicator.
