Hi all, wanted to post an update for 2012: when we opened the pool this spring we noticed that stinky old stale smell of alcohol in the skimmer, so my husband pumped out the pink RV antifreeze in there and in all of the piping instead of letting it all flow back into the pool. As a result, we only had a slight smell of it in the area for about a week or two and then it was gone. My conclusion is that Walmart's pink RV antifreeze was the cause of the odor in the pool, and we aren't going to use it anymore.
I've also brought the CYA level up to 40-45 (compared to 30 of last year) and the pool is only using a couple of 96 oz bottles of bleach a week. I used to have to put in a bottle a day. Conclusion here is that we didn't have enough CYA in the pool last spring.
Wishing everyone a great swimming season this year!
Jan