01-12-2009, 08:05 AM
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Is your condo a flat or multi-level? More importantly, what floor is the tank going to be on?
I ask because the 180 gallon tank is going to be HEAVY! I calulate just 180 gallons of water to be about 1500 lbs. Rock and sand are more dense, adding to that weight, and a sump that is say 55 gallons would also add another 400+ lbs...
If you are putting this tank on the second floor, I would consider reinforcing the floor. I would probably install a lally column directly under the tank with a maybe an eight foot girder to carry the extra weight of the tank.
Live load is the load that is going to change, such as me walking across the floor. Dead load refers to the more permanent loads through the structure. Most residential floors are rated to carry 40 lbs of live load, and 10 lbs of dead load per square foot. This tank is going to be about 12 square feet, carrying about 166 lbs/sq ft. This could cause major sagging in the floor, and probably damage to the floor joists.
If you are on the first floor, it is possible the condo could have been built on a slab. Concrete, which is rated for 4000 lbs/sq inch, will have no problem carrying this load. But if you are on the first floor and there is a basement or garage underneath you, then you have the same problem I mentioned before.
If you give me the schematics (even a rough drawing), I can have it figured what you will need to carry the load of this tank.
Let me know.
Last edited by wake49; 01-12-2009 at 08:14 AM..