Recently he started doing this, said that this is a new way to save money, since we really do not have enough money, every penny is counted.

And so he says that 1.5 liter bottle is filled for 5 times, instead of one flush - saving water and money, since the water meter.

Maybe he is right, but is it a big savings? It's disgusting for me to live like that. True, the bottle is glass, he washes it after, there is no smell. So tell me, what should I do? Should I file for divorce?