Thanks JCO,

The new buffer zone at the bottom of the pump to hold the netting away, will make for a more consent flow rate. It will also make finding dead fish much easier...one was there for quite a while by the looks of it. I would have thought my PH levels would have increased...tested water yesterday, no change.

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I HAVE NOT FAILED. I'VE JUST FOUND 10,000 WAYS THAT WON'T WORK. Thomas A Edison