Originally Posted by SherWood
I think I am just going to buy a couple of 12" Matala rubber disks and go with them. It won't cost that much money, likely do a better job and be less of a headache to set up. Also, I won't have to worry about purchasing and figuring out how to employ separate check valves.

You just made a wise decision.

Here is an old thread on aereation that might have some useful information.

https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=454091

John

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