The MAX Orange Line will open on schedule on Saturday, Sept. 12, 2015, and while construction is 95 percent complete, the federal funding process continues through 2019. Until the federal appropriations process is complete, the project will continue to incur costs, which is why the savings is given as a range.
The most common household form of water softeners are ion-exchanging resin devices. There are three main types of water softeners, categorized based on what salt they use: sodium, potassium, or hydrogen. These water softeners have a bed of resin that water is passed through. The resin is negatively-charged, and so binds to the positively charged metal ions in the hard water.
Regenerant (salt or salt substitute) is used to clean the hardness off the resin inside of a water softener. There are currently two types of regenerant that may be used: For a salt substitute, potassium chloride may be used. However, potassium chloride is not recommended where iron is present in the water supply.