Last year when remodeling our home I did a lot of research on jetted tubs vs. non jetted, as I really wanted a jet tub.
I went ahead with the jetted tub, but with precautions. I clean my jets monthly circulationg with Clorox. I have yet to see the black particles as I have seen in other places I have stayed (Not at
DVC). The dishwasher detergent sounds like a good idea also.
Not trying to scare anyone, but if you see the flaky, scaly, buildup in a jetted tub prior to bathing, you should definitely call housekeeping as those are mold spores that can become airborne and inhaled and cause sickness.
Im not sure how often DVC housekeeping cleans the jet or if the law is applicable in Florida so hopefully someone posts with that info.
There is also a water conservation issue with having to fill a tub for cleaning purposes, so hopefully DVC has addressed this. I fill my tub to the recommended level and turn on the jets to check residue.
I must say that I was surprised (although happily) to see jetted
tubs in DVC Villas, as they are definitely more expensive to maintain.
Another thing I did not know about jetted tubs is that you are not supposed to circulate bath oils or bubbles in them. This causes more residue buildup in the jets. If you use these items, you should cycle through cleaner more often. At home, this could void the Manufacturers warranty.
I'm sure alot of people do this, as what is a luxurious bath without bubbles? Now I take a nice whirlpool bath first and if I want to soak in bubbles I turn off the jets and add bubbles for the soaking part.
Again, Im not sure if the DVC tubs come with any instructions on what to use in the tubs but just wanted to share some interesting info.