There are a number of issues with any technology provided to replace low tech solutions across the board.
Reducing the old style flushing mechanisms from 3 gallons per flush to 1 gallon per flush is probably a better solution. It still allows the user to flush again if the first time was insufficient.
Waterless urinals don’t get a fresh water supply. So the next problem is bring water or other liquids in to clean the urinals.
Next comes an issue of concentration of urine. Waterless urinals do not dilute the urine. They provide a lighter density fluid to act as a trap, with the heavier urine sinking below their fluidline. If that basic trapping mechanism fails, odors arise.
Another problem comes with splash or other urine not washed down around the area.
Another problem comes on the sewer system. In arid or desert regions, the waterflow might also be beneficial in general maintenance of the sewer system keeping things from getting clogged up.
last of all comes the maintenance or cleaning portion. When replacing the cartridge, it is much more likely to get one’s hands dirty, than with a water flush system, where the bulk of the area may be flushed and generally cleaned with water prior to fully cleaning the system.
Most people who clean toilets have no qualms with cleaning a relatively clean urinal, but a thoroughly filled urinal doesn’t attract many people to clean it.
I don’t recommend them and where possible prohibit their installation due to increased maintenance and costly repair solutions.
If people insist upon a waterless solution, then give them a pallet of empty plastic bags, then figure out where to take them. Rebuild the wheel, then figure out whay some low tech solutions are the most practical.
Utilities are named such because they provide the most economically efficient provision of a commonly used commodity. Go figure. (Same applies for those who refuse to drink tapwater but want bottled water from New Zealand, which has been sitting like Petri dish for months to years before consumption, with lesser codes or regulations than tapwater.)
Man, that was one long, weird, post.
On a schedule based on average traffic, the cartridge is replaced on a schedule, which can be months apart. Someone puts on a glove or not, removes the cartridge and pops the new one in, just like they do with the ammonia cakes and the cigarette screen
Every night the janitor sprays it as you are supposed to and wipes the porcelain just like he did the old urinal and the toilets.
The toilets, lavatory sinks and the ladies room all supply plenty of water for the sewer line.
You were describing nothing and trying to make it sound like something huge.