I have heard that pools can float. How can a huge pool float?
A. Pools can float due to the age-old fact that if the total of the materials that the pool is constructed out of plus the water in the pool is lighter than the water the area of the pool displaces, it can’t do anything but float. Again, here is a downfall of the vinyl liner pool. The entire pool won’t float, but the liner will more easily float out of place, thereby creating an expensive service call to reset the liner back in place, often in excess of $600.00. Gunite pools and fiberglass or stainless steel wall concrete bottom pools have a distinct advantage here because they can have what is called a hydrostatic relief valve installed in the floor’s drains. If the water around the outside of the pool starts to exert pressure on the outside of the pool, this valve opens up and relieves the pressure differential between the outside and the inside of the pool. When the pressure is equalized then the valve closes and all would be well. This would stop the floating issue dead in its trac