I did a a ton of research on tubs including hydropool.it was on my short list. i sent for info at their website and received a dvd on their factory process. it was the turning point. they also make a tub line called serenity.they are constructed the same ,but without the floor drain system.although thefloor drain is probably the better filter system Idecided to go to a bigger tub with two motors in the serenity line (Millenium 6000) rather than the 578 inthe hydropool line. I am sure I made the right choice. My dealer has been with them for 15 years and has gone thru many other tub lines to compliment them . His experience with them has been very positive. hope this helps. my tub will be here in a month . bobhol
