There is a decorative PVC film pond on the property, which is leaking a lot - somewhere torn. Our neighbors covered the pond with thick polyethylene film. It lasted three years. I was thinking, if the pond is leaking - maybe it's better to pump out the water, dry it out and see if the damage is not critical, then seal it with a suitable sealant https://sealwithease.com/concrete-sealer/. Another question: can I top it with something else, less expensive, for a 32.81-foot pond? Will a thick plastic sheeting hold the water?