I would also double check for a leak.
Currently in our house we flush after every use, dh and I shower daily, ds (6) 5x a week, and bath the baby and my toddler 3 times a week each seperatly wash diapers 3times a week, do laundry and run the dishwasher daily and have 2 kids obsessed with washing their hands, and my water bill has gone up $30 in 5 years (adding cloth and 2 kids in the mix).
SAHM to DS 10/06, Hyploplastic Left Heart Syndrome, DD 7/09, & DS 8/11. Come earn extra cash with me!!!!!!!ebates swagging