That would be a good assumption. As water depth increases so does the hydrostatic pressure, weight of water pushing down due to gravity. This increase in pressure would cause your rate of loss to also increase as the water is being "pushed" through the leak at a higher rate. Have you investigated AquaBlok? It is a less complex approach to a clay (bentonite) liner that is self-compacting, so there is no need for compaction or amending soils. It is also manufactured in NW Ohio and only a stone's throw from you. I am a rep for AquaBlok, as we are a PB sponsor, and would be more than happy to help. I am here in the Buckeye State and have some OH contacts that would be able to help find a solution to your leaky pond no matter what avenue you choose to go with (Liner, Clay, or Polymer).
