I had and LOVED both of these up until I left them in the bottom of our smoking hot jacuzzi overnight. They blew up to 20 times their normal size and exploded. They turned our Jacuzzi into a green goo toxic waste pit for about 2 weeks. Needless to say, my Pops was furious becasue it stained the gunnite green and cost about 2K to get it cleaned and have the filter fixed.
That was last week btw.