Which of these water treatment procedures should you use before pouring raw
water into a Lyster bag?
a. Add calcium hypochlorite to the water.
b. Add orthotolidine to the water.
Stir the water vigorously.
d. Let mud and other debris settle out of the water.
e. Add iodine tablets to the water.
Small units in the field purify water using the:
b. Immersion heater.
Orthotolidine tablets are used to:
a. Chlorinate water.
b. Determine the disinfecting time.
Determine the chlorine residual of water.
d. Disinfect water.