yeah, let us know so I can drive by and put dish soap in the fountain if you've got one LOL!!

They have "sniffers" that can detect very small leaks.Mix dish soap and water in a spray bottle.

Ask for soap bills.  

______All light covers must be cleaned (in the dishwasher, carry soap).

Then, if there's a need, and your market checks out then start getting it furnished and add all of the amenities, towels, body wash/soap/shampoo/conditioner, washer/dryer, etc. 

i.e. maintenance, make sure the firestick/cable channels are working, make a shopping list of things needed like laundry soap, coffee etc. 

While they are all month to month on their anniversary of their move in, raise the rent a bit to cover some of those costs.Even if you installed tankless water heaters, you'd still be paying for water and now you'd have the extra cost of the water heaters and I don't see how that would save you money for water.

Machine wash, custom wash fold, dry clean, soap sales, concessions, etc4.  

In other cases, they could be household basics like soap, toothpaste or shampoo.StorageIf there is unused space in a basement or parking lot of the property, converting it to paid storage provides both a valuable service to residents and a potential way to generate a steady stream of non-rental income.

B-I-N rep suggests if I was going to use TSP to use the substitute as the normal TSP can leave a soap residue and the primer might not adhere as well.