04-09-2008, 03:19 PM
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Tank level is slightly unlevel
Iím sure this has been asked many times, but here we go again. I've recently upgraded to a 120 gallon tank, its sitting on a custom stand with 2 x 1" polystyrene slabs between the tank and the metal stand. The tank is perfectly level from side to side but is off from back to front, the water level is 6mm lower on the front of the tank than at the back. Distance from front to back is 20inches and height is 24inches.
My question is, is the tank at risk of cracking, or is it ok to leave it as it is? It's full of water now, so will it need to be drained fully to lift the stand to insert more shims at the back, or is it ok to jack up the stand a few mills and insert the shims using a car jack?
Thanks in advance