Pay or not to pay - Water bill on multi-family properties

[Erik Cabral]

I picked up a 2 unit multi-family property. Unit 1 is a 1bed/1bath. Unit 2 is a 3 bed/1 bath. I've accounted for me paying the water and sewer in my numbers but have also had others recommend I pass this cost down to the tenants by splitting it 1/3rd to Unit 1 and 2/3rds to Unit 2. I plan on raising rents $100 for each unit so either way, I'm covered. Looking for ideas! What have you guys done in this situation?