Posted on Wednesday, April 04, 2007 - 12:09 pm EST :
I have a garden pond made of a poly liner over a concrete base. The edge is topped with York flagstones. The join between poly and concrete is cement and my problem is that water is now escaping through that join. Where it is wide I can replace with more cement with waterproof agent added but where it is narrow, I could do with a "plastic" filler. There's no damage to the poly. Anyone know of a suitable product ? Obviously, one that is not damaging to fish !
El Tel UK Zone 7/8