Here's a formula for round pools:
distance across*distance across*depth*5.9
for rectangles:
length*width*depth*7.5
or for a deep end:
length*width*((shallow end depth + deep end depth)/2)*7.5
so in your case, 16*16*4*5.9=6000 gallons=23000 liters
A 22-foot round pool that is 4 feet deep holds about 43,238.5 liters of water.
About 49,246.3 liters of water.
About 39,397 liters.
About 129,715 liters.
About 45,025 liters.
right at 1809,000 liters
There are 3,634 liters (960 gallons) of water in a pool that is four feet in diameter and 8 feet deep.
Approximately 20016.7 liters
If it is a round pool that is 10 feet wide and has 3 feet of water then it contains 1,770 gallons of water.
Going to take a few steps but here goes....area of the pool = radius Squared times Pi = 16.5 X 16.5 X 3.14159 = 855.25 square ft.Volume of the pool is area X depth = 855.25 X 4.5 = 3848.625 cubic feet1 cubic foot = 28.3168466 liters3848.625 cubic feet X 28.3168446 = 108981 liters
50
The answer depends on how deep the sump is!