My dishwasher leaves water spots on my glasses. What can I do to prevent this?
Water spots on dishes are caused by minerals in the water left behind when water evaporates. To prevent this, use a rinsing agent in your dishwasher, which improves the sheeting action of water and helps to prevent spotting.

Also, be sure to use the proper amount of dishwashing detergent. Using too little may not get your dishes clean, and using too much can cause etching (which is tiny scratches on the surface of the glass that cannot be removed).

The optimal amount of detergent depends on the hardness of water (amount of minerals in the water). Our water's hardness level is about 58.4 ppm, or 3.4 gpg. Check your dishwasher's manual for the recommended amount of detergent to use.

Show All Answers

1. Does Charleston have a shortage of water?
2. Does Charleston's water contain fluoride?
3. How is the water disinfected?
4. I live in an older home, should I be concerned about lead pipes contaminating my water?
5. Is it okay to use the hot water tap for cooking or drinking?
6. Is my water safe to drink or is bottled water or filtered water safer?
7. Is tap water safe for use in aquariums?
8. My dishwasher leaves water spots on my glasses. What can I do to prevent this?
9. My water tastes / smells funny. Does this mean it's not safe to drink? What should I do?
10. Should I be concerned about Cryptosporidium or Giardia?
11. Should I be concerned about the sodium level of Charleston Water System water?
12. Sometimes my water has a milky white appearance, why?
13. What is a Boil Water Advisory?
14. What is the pH of Charleston's water?
15. What is hardness and how hard is Charleston's water?
16. Where does Charleston Water System water come from?
17. Why does my water sometimes appear rusty?