Great question!
I have one too:
Does anyone have a koi pond that has a filtration system? I was wondering about the 'gunk' that I wash out of those filters onto the ground...could I use that as fertilizer, or would it be too much on the plants?
It does green up the grass where I do a washout for the daily filter, and the large bio filter I run gets cleaned monthly and gets piped underground about 70 feet away into the wood line; it would be easy to collect that into buckets.
Thanks!
