We have a constant drip on our pond, which changes out daily right at 250 gallons. I dump my settlement chamber every single morning 350 gallons, Every saturday I back wash my ultima 20,000 & ultima 10,000, drain out 1 of our 3 biofilters, we rotate those weekly, and dump my settlement chamber 3 times, that is around 1800 gallons, not to mention all the daily dumping. Our pond is 10,000 gal
California utilities are not cheap. our water bill bi-monthly is around $400 in winter and $550 summer, electricity monthly is $600 in the winter, summer has been as high as $985 month.