One water meter. Six tenants. Who pays what? That is the question RUBS answers.
RUBS (Ratio Utility Billing System) splits one master utility bill across units by formula: occupancy, square footage, or both. No submeters, no hardware, no guesswork.
The key: the formula belongs on the invoice, where every resident can see it and check it.
Try it: aquasplit.app (link in bio)
Music: Carefree by Kevin MacLeod (incompetech.com), CC-BY 4.0.