In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
It's illegal in many places, but the first place to save money can be on water bill. Often it's worse than gas,electricity,or phone. Segregate the waste from bath and shower. Use it for lawn or even toilet. Is it worth saving a few hunded$ per year?
Solar thermal energy is ideal to distill water. Then you can save even more.