Why not just put a liner in it? Future cracks would then be a non-issue.
Just my $0.02 worth
Paul



"Larry D. Gibbs" wrote in message
news:PEcwa.833099$L1.242015@sccrnsc02...
I have a Concrete pond that was here when I bought the house about ten
years
ago and the water level goes down rather fast. I see that who ever built
the
pond applied some sort of sealant on the bottom of the pond "off whitish
color" and the water seems to stay at that level. I have heard of G4
Sealant
but don't know where to buy it and how expensive it is. The pond is not
smooth, it looks like a rake and shoe imprint were used. What kind of
sealant can be used and also where can it be bought. I live in Tacoma
Washington. I had goldfish in it and they survived until the raccoons got
them.

Thanks,

--

Larry D. Gibbs

http://www.larrygibbs.com/
Only left handed people are in their right mind.