Can I determine the volume of water in a pool using salt?

Question

If a certian amount of salt raises the salinity by a predetermined amount, wouldn't it be possible to determine the amount of water in a vessel by doing the math? If I know the amout of salt and the subsequent rise in salinity, I should be able to extrapolate the amount of water. Right? So, if I add 50 lbs of salt to a pool, and the salinity gos up by 500 parts per million, all I would need to know to determine the volume would be, how much does one lb of salt raise the salinity of one gallon of water. Any thoughts?

Answer 1

You theory would only hold if one had pure water, no minerals, and a fixed temperature of water throughout the entire pool.

So if you did add salt, the impracticality of this would be that it would take too many hours to disperse fully thoroughout the pool, even with a filter pump. And the temp near the bottom and sides, particularly the bottom would be less due to the 50 degree earth.

So id say this is an impractical idea, totally unnecessary considering the "tape measure" has already been invented.

Answer 2

I think I'd use chlorine and pH in my pool.But your theory is sound