Here it is January and I'm already beginning to think of Summer. I'm trying to make some decisions now so that I can Implement them in the spring. I am considering adding a 55 gallon barrel with a stock tank heater floating in it to my solar heating setup that I'm currently using. I found that my solar heating system does keep my pool warmer than it would be without it but it's still not quite as warm as my husband would prefer most days so was hoping to supplement the solar power. Does anyone have any experience with this method of heating and any advice?