When flowing water other than tap water into the sewer

Sewerage fees will also be incurred when flowing water other than tap water (such as well water, rainwater, and spring water) into the sewer system.

Consult in advance

If you are discharging water other than tap water (such as well water, rainwater, or spring water) into the sewer system, it is necessary to install a measuring meter to calculate the sewerage fees. Please be sure to consult the Sewerage Division before starting any construction work.