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Howdy (wow, it's been years since I've been here!...) We have a beach house in Ocean City, Maryland with a 15+ year old Jacuzzi hot tub. Forget the model #, but it is about a 250 gallon tub. Our house is used almost every weekend and many weeks in the spring and summer, and less so in the fall and winter. However, it is used by constantly changing rotations of friends and family, none of whom are particular good (nor, apparently, want to be particular good at) spa maintenance. I'm looking to replace the tub and want a 4-5 seater in the $4-6k range that has very very low maintenance. I thought I read years ago about Watkins having some sort of maintenance program where they would auto-inject sanitizers into the tub, but can't seem to find any additional information on that. My hope is that a tub with good filtration, silver cartridges, CD ozone, and some type of "fill this reservoir and you are good for 3 months" system, plus dropping some sanitizer in before or after each use would go a long way to making the hot tub stay clean even with relatively clueless people using it. Do such systems exist? Am I completely making this up? Any help here would be greatly appreciated.-Ed