I bought and set up ours on the 27th of June last year. This past weekend one of the windows started leaking. I tried to patch it with limited success. I looked at my paperwork, 90 day warranty and I can't find the receipt anyway. I thought I saw a comment on a YouTube video that someone got a replacement liner out of warranty, so I figured I'd give it a shot. I called them, they said they'd send me a new replacement liner free of charge if I'd upload a pic of the leak, and a pic of the serial/batch number. They normally want a pic of the receipt as well, but the agent I spoke with had no problem without it. My warranty should be processed this week. This ended the season early for me this year, but that's beyond my control. At least I should have a new liner soon.