Butyl is the best, and the preformed liners are fine for formal shapes. A
good choice for your size pond.

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"GaryCampbell" wrote in message
...
|
| Hi folks,
|
| I am planning to build a circular pond and was wondering if anyone can
| comment on preformed 'welded' butyl liner? A few companies say they can
| do this and it sounds like it might be what I'm looking for. The
| dimensions of the pond are radius 1500mm, depth 600 with a 200mm deep
| shelf. One part will be slightly overhung by decking.
|
| If I use a flat piece of liner there will be lots of folds so was
| wondering if the preformed liners are any good? Are there and potential
| problems?
|
| An alternative I have been advised is to build the pond in concrete
| with bituminous coating. Someone else then commented that certain fish
| might not like the coating? I don't plan on havig Koi. Probably
| goldfish, orfe and the odd tench or ghost carp.
|
| Thanks in advance!
|
| Gary.
|
|
| --
| GaryCampbell