Installation guide for bottom drains bottom drain under liner to skimmer and bottom drain above liner to external pump manifold.
Installing pond liner bottom drain.
The liner is installed as normal but cut out a hole of the geosynthetic around the drain.
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Pond bottom drains simply push dirty pond water to the filter and push it back into the pond once it is clean.
Rectangular box welded pond liner insert flexible 168 00.
Place liner in pond.
It is very important to make sure you have enough liner around all the sides of your pond before you cut the drain in.
Another option is to use expanding foam to fill any voids and provide a smooth surface for the liner.
Before installing a pond liner pack some dirt into any voids to create a nice smooth backing for the liner.
An x cut is made over the sump of the drain.
An alternative to installing bottom drains is to remove the fish from the pond drain it wash the pond put clean water and then place back the fish to the pond.