Constructing a koi pond using liner and bottom drain
Just wondered if anybody has made a large koi pond, more than 25 feet
diameter, and fitted bottom drains. I know that they can be fitted into
the liner and the sealed with the screwed flange. Just wonder if this
is completely water tight?
Is the flange on its own sufficient to get a seal or do you need to use
any sealent?
Kevin
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