Hi all - I joined today.
I am building a new house and have included a large Koi pond as part of the swimming pool water complex.
The pond will have a stream with small waterfalls to act as a bio-filter. I'm curious as to how deep I should make the filter medium (6,8,10 inches?) as the water flows through it and over it on its way to the pond.
I am building a new house and have included a large Koi pond as part of the swimming pool water complex.
The pond will have a stream with small waterfalls to act as a bio-filter. I'm curious as to how deep I should make the filter medium (6,8,10 inches?) as the water flows through it and over it on its way to the pond.