At first it wasn't working we had to def. use the kit that it comes with. Works fine and doesn't slow the filer down at all. I have a 15x30 oval pool and it def. needs another one of these solar domes. So when you buy this and you have a big pool like mine, buy 2. Otherwise it won't heat it on it's own.
I love my solar heater. Only thing was I had to buy 2 boxes to heat my size pool (14,000 gallons). I wish they had had the box with 4 panels instead of 2. I was reading under questions and answers something about the box coming with a solar blanket. It does not come with the blanket. It is strictly the panels and clasps. I also bought the roof kit. It worked perfectly when installing the panels. Both were much cheaper than elsewhere. My Florida pool is more like a hot tub now.
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