Wastewater treatment facilities construction costs are relatively high. Watecline Co.,Ltd, the company line. We have tried to provide equipment such as wastewater treatment. Submersible Aerator, Submersible Ejector, Air blower, Submersible pump, Self priming Pump, AirDiffuser, Plastic media devices that are sold as Tsurumi, Shinmaywa, Varisco, NGE, Waris, Taiko kikai, Hcp. If you want to install a septic system . We are happy to provide advice to help you save money and benefit absolutely.