Another homemade pvc aerator using a spa jet

[banditig]

To lower TA. I put a union on end to screw into return so it's also a fountain. I can run it without air also so the PH doesn't get too high by using the shorter pipe.

 

[Richard320]

A skinny pool noodle and a hose clamp could turn that into a swell water cannon.

 

[banditig]

That sounds fun!