The process is called sublimation. Solids can turn directly into gases, and gases can turn directly into solid without ever being a liquid. Carbon dioxide (dry ice) is a commo â¦ n example of this. Other examples are mothballs, solid air fresheners (Air Wick), and iodine.
When you start itching from chlorine, get out of the pool and limit your exposure to the chemical. Chlorine-related rash and itching typically subsides within two to four weeks. Hydrocortisone creams help relieve the itchiness.
It is recommended to wait at least 20 minutes to an hour after adding water balancing chemicals. You should wait 2-4 hours (or one full cycle through the filter) to swim from the moment you use calcium chloride in your pool. It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours.