Hi there,

I have a delema, I have a small pond <4000L

I currently have the following filter setup...

1 Submersable pump 4000L/p/a H (I have to trottle it back a bit at this stage)
1 x Self made Kaldness filter (150L drum & 50L kaldness & big airstone)
1 x 25L Ultrazap combo bio & UV (8w filter) GRAVITY FLOW

Returns above water through a big pot.

My problem is that I have no bottom drain & no mechanical filter, this means solids gather on the floor & my K1 filters strainers become clogged up

How would you solve this problem ???
(I have a pond vacuum, but it does not work that well & is laborious )

I am looking forward to your expert advice

Why don't you post some pictures so that we can see what are dealing with ?