Soilfloc treatment would cost less than $400 if your dimensions listed above are accurate - I can also provide a Pond Boss discount. It's designed to work in hydrated, full ponds - bentonite is not designed to be used as such. Expect to pay at least $1/sq ft for liner. Feel free to PM me if you need some help with the sealant, advice from the other guys posted here is based on their personal experience and should be followed.
How much would it cost for a 1 acre pond? Mine seems to be leaking under the damn best I can figure out.
