Thanks Craig.
I also bit the bullet and ordered another chiller... this time from a company that hopefully won't be going out of business anytime soon...
It's an AquaLogic 1/3Hp, which I'm pretty sure will be more than enough...
I was working with the original person I bought the CSL chiller from to get a replacement, but the only choices he had were either a CSL 1/3Hp (which would land me in the same boat I'm in now should a problem arise), or an Aquamedic Titan 1/2Hp (bleccccch!).
Instead I'm pressing for a refund on the CSL chiller and bought the AquaLogic... I'll keep everyone posted how it goes.
Thanks again for following along and humoring me.