Chem log, to see....

[Charlie_R]

Here are a couple of pics of what I was using to circulate/aerate the water, and what I'm using now:



I don't know if copper would leach from the fittings or not, but from what I've read here, it may not be something I want in my pool.

So, I made this with a replacement cap:

[Watermom]

Very clever! Thanks for sharing that pic! (And, you're right. You do NOT want copper in your pool.)