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Originally Posted by AJ_77
Going sumpless, Walter. Good luck on the skimmer, though... 
Just wondering how the cement (basement) floor is, just under the FR corner... got 3 cedar shims under there now, and that side is level, but now the whole tank tilts slightly end-to-end (R to L)...  |
Basement floors are never level. they are sloped toward the floor drain. My 50 has a one cm. slant from one end to the other. It usually does not matter as long as the tank is fully in contact with its support on the bottom. Moderate sloping end to end or front to back does not matter as long as the bottom is not twisted.
