I have a pond that is 20 foot around 3+ feet deep and used two pieces of
Rubber roofing spliced right down the center it has not been a problem.
Buying two smaller pieces and the roofing splice kit from Menards was
cheaper then a single piece.

"Kodiak" wrote in message
...
Does the Liner (EPDM, rubber, or Vynil) have to be
one piece?

What do you do when the pond you wanna build is too
big for any liner that's out there? Can you glue/overlay pieces
together with silicone sealer or something?

...Kodiak