I tested the water in the barrel it looked fine , I used test strips , so 13 buckets of water later the pond is back to the right level , I removed all the netting , looks better and the reeds? Are fine standing on there own . Cleaned out the green filter in a bucket of the barrel water and stuck a hose in the bottom part and shook all the tubes about ,I was able to connect a hose to the outlet and diverted the dirty water away , I tried the pump before I'd cleaned the box and dirty water was pouring back into the pond ,
I found the bit for adjusting the fountain and turned it off completely ,
I want to try wrapping the pump in some kind of filtering material , I've read good results in clearing the water this way .
And I found a big clump of frog spawn , I guess the tadpoles won't stand a chance with the koi in there ? It's making me think more about making another small pond above the existing one with a waterfall down to the main pond and move the tadpoles up there ,