Do landlords have to pay for a reverse osmosis filter sustem?

[Maria Tran]

Hello,

My renter just sent me an invoice for a reverse osmosis water system and installation fee.  I previously had a water filter connected to the fridge but had no such water system.  He chose to install it on his own and unfortunately, the lease does not spell out whose responsibility this is.  

Any advice on whether this is my responsibility or the Tenant’s?  He installed it without my knowledge and consent so it seems fair that I shouldn’t have to pay for it.  

Appreciate your input!