Last night I went out to relax in my hot tub. I only unfolded my cover half way because it was drizzling. I finally got too cold with my rain soaked head and got out and went back inside. I went to get my 1 oz of 10% chlorine and dumped it in. Carried my measuring cup back in and in the process got a work phone call. Well, I forgot I had left my cover half open and the drizzle became rain. A few hours later as I was going to bed I noticed my cover was half unfolded and immediately went out to flip it back over. Boy, was that half really heavy with rain water. My cover is only 2 months old. What do I do now?