A couple of years ago, when we built the big pond, DH was interested in
spraying it with truck bed-liner instead of dropping in a liner. I checked
into it, and was told several reasons why it wouldn't be good on a cinder
block tank. But, since he was determined to find some kind of good sized
container to make the new pond out of (he completely distrusts flexible
liners of all kinds-a major point of disagreement around here) he bought a
galvanized stock tank, and had it sprayed, inside and out, to resist the
ground moisture which would cause it to rust. We have had fish in it for a
couple of weeks now, and they are happy as can be. There is no sign of any
chemicals bothering them in any way. I know it has been brought up once or
twice, as to people wondering if it was safe to use bed-liner for ponding,
but unless my Google search was incomplete, no one here has tried it. It
was a teeny bit pricey, but a 700+ gallon hard liner was hard to come by at
any price. The guy who sprayed it for us did have to treat it to get rid of
the galvanizing, but it was do-able. The real benefit that I see is that
this would be a good way to reclaim an old metal trough of any kind, that
might already be rusted, or just unused for any reason.
If you want to see how it turned out, here is a link to the pictures.
http://photobucket.com/albums/v176/Ann_in_Houston/ The new one is the
smaller, round one, in case anyone was wondering. We will add a gravel bog
on one side of it, when we're ready. We are using a temporary tetra
canister filter in the meantime. I'm not sure whether we should do the
ground treatment or the bog filter first. All advice is welcome, regarding
that. This one's getting long, so I will post our ideas for that in another
thread. There will definitely be more pictures.
More to come,
Ann