I bought a Salt Solutions T-15 replacement in June, 2021. It lasted about 4 months of actual use. (Removed for winter.) They replaced it under warranty. Second one lasted about 6 months and appears to be failing again. I haven't called them yet to find out if it is still under warranty. Since the company has had a good reputation here I wanted to find out if anyone has experienced or heard about trouble with cells purchased in 2021-2022. I know they've had trouble getting materials post-pandemic, so it seems plausible they could have had trouble with material quality.