Where is the heater located that vaporizes any chlorine liquid that may develop downline from an online one-ton container?

• A. before the chlorinator
• B. after the ejector
• C. before the vacuum shutoff valve
• D. after the one-ton container's regulator

Answer: (A)

The key idea is to vaporize any liquid chlorine before it reaches the chlorinator. Placing the heater upstream of the chlorinator ensures that any chlorine liquid that forms downline from the online one-ton container is converted to chlorine gas before dosing. This keeps the chlorinator working with gas only, which provides consistent, safe dosing and protects the equipment from liquid damage, slug flow, or corrosion.

If the heater were placed after the chlorinator or in other downstream locations, liquid chlorine could enter the chlorinator or injection system, causing improper dosing, potential damage, or safety hazards. Heating upstream guarantees the chlorine entering the chlorinator is in vapor form and ready for reliable metering.