You and the landlord can agree whatever you like between you including using the hot tub and you being responsible for repairs and maintenance.
Before committing to that, you want to make sure of course that there is not anything wrong with it whereby you are likely to have some liability which you weren’t expecting.
Can I clarify anything for you?
Please rate the service positive. It’s an important part of the process by which experts get paid.
We can still exchange emails. Best wishes.