I'm paying too much for water! Can I split water meters?

[James Erickson]

In 2015 I spent $16,742 on water for some of my rentals. There is only 1 water meter feeding multiple units so I cannot tell which unit is using how much. I can usually tell who may be using more water than the others based upon past usage and diligent record keeping. I have thought of paying to split the water into separate meters feeding each unit and then having the tenant pay the water. I know this would be touchy to have a tenant start paying the water since they rented the place water paid. Can you provide me with suggestions on what I can do to put the burden of water payment on the tenants rather than the owner? Thanks.