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Originally Posted by Bill Parker
We are putting in a small pond with waterfall/stream. All the literature
that I have read recommends sealing stone in the stream with a foam. Every
foam product that I can find says to not use under water. What kind of foam
are they talking about.
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If your are in America have a look at I think "great stuff", if you are in the UK I would thick about mortaring them, mortar is portland cement and sand mixed and that can be discussed later if you are UK. If you are UK and I forget to check back or this thread gets lost, raise this question on the board fishcrazy