This week we put in a 15 foot pool (we'll go bigger later, but this will help Kelvin for now). We then bought a hot tub and tub enclosure today, so that we can all be in the hot tub any time of the year, even when it is super cold. Of course, we bought this to help Kelvin, on advice of Dr. Wong, she says the pool and hot tub are great, so that is what we did. I can't wait to be in the hot tub, but we won't get it going until fall. We are just doing what we can to help him, whatever it takes.