buoyancy calculation for PVC Liner
buoyancy calculation for PVC Liner
(OP)
Hello
Does anyone have any guidance on determining the buoyancy of a PVC liner in a pond with a high groundwater table? I'm looking to determine the amount of fill or ballast required over top of the liner to hold it in place during the seasonal high.





RE: buoyancy calculation for PVC Liner
Thickness of fill above liner (in area below water table) times area of the fill below the water table times the density of the in-place fill.
They should at least be the same. Increase thickness for a factor of safety.
Alternate: Have some holes in the liner to equalize the pressures =P