Well, in the attempt to avoid more frustration in setting this system up, I bought a new tank. Having it brought over to our house tonight. It's a 90 Gallon. I wanted to go bigger anyhow, but still.
Not sure what we'll do about the 66 Gallon... I'm going to call the guy I bought it from. If he won't take it back and give me the cash back, I'll figure out what to do then..
Anyone want to buy a 66 Gallon?..
Needs re-sealing inside one end.