Glassware has milk-like smear or rainbow appearance - Excessive rinse aid or soft water

What does Glass Smear / Rainbow mean?

A milky or iridescent film on glassware that cannot be wiped off by hand indicates either too much rinse aid being used or corrosion due to very soft water. This is often referred to as glass etching.

• Excessive rinse aid used.
• Corrosion on glass due to soft water.

Click steps to track your progress.

1. 1

   Lower the rinse aid setting.

2. 2

   Clean any spilled rinse aid from around the reservoir.

3. 3

   Measure the hardness of your supply water. If it is very soft (<15 gpg), do not use salt.

4. 4

   Choose programs that wash at higher temperatures (140-149°F) if you have soft water.

5. 5

   Consider using commercially available glass protective detergents.