One of the failures was a pump. It's a small direct drive solar pump, 24v thomas rocking piston pump, purchased used and was running flawlessly for at least 3 years, so can't blame it really. The other was a timer / control issue on a larger solar / battery pump. No issues with lines freezing / condensate last year, thankfully. I redid the battery system this year so it has about 3' of line from the pump to the water, and i'm going to replace the small direct drive pump and it's tubing before we freeze up (we have a few weeks left).

Best of luck to you as well!

They've gone to plaid.