A backyard swimming pool holds 200 cubic yards of waterWhat is the weight water in pounds?

The density of water is 62.4 pounds per cubic foot:

1 cubic yard = 3 x 3 x 3 = 27 cubic feet

200 cubic yards = 200 x 27 = 5400 cubic feet

Weight of water = Density * Volume = 62.4 * 5400 = 336,960 pounds

Therefore, the weight of the water in the swimming pool is 336,960 pounds.