Doing a single circulation jet in the deep section of my new pond, it'll be on a timer & will hopefully periodically stir up any debris & send it up into the water column & on to the intake bay. Was planning so far on using 13mm poly pipe but am wondering what size pump to use for good effect (like what's the max you could practically push through that size pipe to really stir things up?). I'll be buying a new pump for this. I've also got 19mm pipe I could use, the area it has to stir up is only maybe a few metres long & just over a metre wide, so basically what would you use out of those size pipe & what size pump?? Thanks again guys
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