Water Softener Optimization and Rebate Program

Water Softener Optimization and Rebate Program
The City of Marshall’s Municipal Wastewater Treatment Facility (WWTF) is required by the Minnesota Pollution Control Agency (MPCA) to reduce the discharge of chlorides into the Redwood River. A large portion of chloride discharge comes from water softener salt that is sent into the sanitary sewer collection system which flows to the WWTF and is discharged into the Redwood River. Since chlorides cannot be removed through conventional mechanical treatment systems, the City of Marshall and Marshall Municipal Utilities (MMU) worked together and upgraded MMU’s Water Treatment Plant to produce a softer water to help attain compliance with the required limits set by the MPCA.  As of June 1, 2021, MMU has been delivering water at eight (8) grains hardness compared to thirty-five (35) grains hardness previously. This project alone will not meet MPCA State Standards. Your water softener must be adjusted to the new hardness.

Water Softener Rebate Program

The City of Marshall has $100,000 to use to provide free optimizations and water softener replacement and modification rebates. $500 rebates are now available for do-it-yourself water softerner replacement or removal. Up to $700 rebates are available to residents for upgrading time clock-based water softeners to more efficient water softeners or salt-free water conditioners. Commercial facilities are eligible for up to $4,000 to replace time clock-based softeners or to modify softeners to recycle salt brine or add a blending valve. Check the eligibility requirements on the rebate application form to see if you can apply.

To learn more and fill out a rebate application, visit the Water Softener Optimization and Rebate Program page.

Rebate Graphic