Then trench wide enough and deep enough for the 4 drain pipe.
Koi pond bottom drain diy.
Locate the center of the bottom of the koi pond.
Once this is done make sure the drain and the liner are clean and dry before gluing them together and removing any wrinkles.
After making sure that you have enough liner to cover the bottom and side of the pond cut an x into the bottom of the liner above where the bottom drain is.
The purpose of a koi pond bottom drain is not so much to drain the pond as it is to remove the debris from the bottom of the pond into the filter where it can be removed from the pond system.
The bottom drain should be drawing water into the filter 24 hours a day.
With this purpose in mind koi pond drains have a unique design.
A hole large enough for the bottom drain at the center of the pond.
Just wanted to say a big thanks to eco filtration on the gift they sent me also just wanted to say if you c.
2 dedicated koi ponds rely on a bottom drain or drains circulation jets aeration and pond vacuums to keep the pond free of debris.
Measure end to end and side to side to find the center.
Dig under the retaining wall boards so you can bring the pipe up to the hydrosieve pf pre filter.