@Lady Penelope said:
It would be advisable from a hygiene perspective for pool cleaning and monitoring to be predicated on the maximum possible usage i.e. all occupants, whether they be owners or long term renters or short term renters using the pool on a daily basis, rather than on the minimum usage.
Possible usage gives a worst case scenario but you could reasonably base it on actual observed usage. Perhaps in practice, even in the middle of summer, only some fraction of the occupants of units use the pool on any particular day.