Mix, I reread the couple of answers you got and I didn't see it as smarta$$, it just seemed like a reasonable answer. What Bogie said is spot on, evaluate the water usage on your bill because is is the only variable.
You can call the water company too and ask them.
That is what you get, running off to Africa and hanging out with all those pretty giraffes.
This...HERE is lower Paradise. Hurry home.
I am just teasing, not aiming to be a smarta$$.