fill in pool?

Question

how much fill will I need to bckfill a 16'x32 ' inground pool., 8' - 3' deep

Answer 1

To figure this all you need to do is 1st find the average depth by adding the two depth ranges 8ft + 3ft + 11ft divide this by 2 = 5.5ft average depth. Then to find the total volume 16ft X 32FT X 5.5 ft = 2816 CU FT of fill and then convert to cu yards. There is 27 cy=ubic feet in a cu yard 2816 / 27 = 104.3 cu yards round this up to 105 cu yards
You also will have to allow for this back fill to settle. to do this add about 4% to the total. So if you add about another 4 1/4 yards.

Total yards needed of 109 1/4 yards of black dirt

Answer 2

Answer-
Hole volume is 16 x 32 x 8.25, or 4224 cubic feet. Divide by 27 and you get 156.44 cubic yards, in terms of undisturbed earth.

How much you need for fill depends on what you fill it with. Use wetted sand (Hose it down throughly as it goes in), and a yard of sand will fill a yard of hole. Use dirt, and there is a "fluff" factor. Disturbed earths like clay bulk up when handled, but will eventually silt back to it's original degree of compaction. That means that if the hole was filled level with trucked in clay soil, it will eventually settle (over 2-4 years) to about 70% full, and you would need more dirt. That means you would need about 222 yards in terms of truck capacity (includes fluff) using clay, and would pile the dirt into a mound over the fill hole to provide a complete fill after the settling process had finished.

Consider filling the lower 7' of the hole with cheap sand and adding a foot or so of topsoil over that. Minimizes the shrinkage problem and lowers the trucking volume/cost.

Answer 3

Can't answer the question with regard to the amount of fill, but as a realtor, I can give you a piece of advice that you may thank me for later on. As tempting as it is to forego the permit process, pull one. Get a compaction report when you are done. When you go to sell, it will become an issue if you don't do this. Whatever the permit or compaction report costs, it cannot begin to compare to what a reduced price or house falling out of escrow because someone is scared of it will do.

Answer 4

Just as a rough estimate it should be approx. 95 yds. of dirt or clay or even lime depending on what you have available. That would be about the same as 4 or 5 tandem axle dump truck loads.

Answer 5

dig hole put in ground, the odds of u having 8' side would blow out any backfill

Answer 6

good guesstimate would be around 2.5 yards of back fill