If residual reading is too low:
Set stroke adjusting knob (5) at position 8 as read on dial scale assembly (11).
Allow unit to run for another 30 minutes, then repeat residual test (refer to step b above).
If reading remains low, set stroke adjusting knob (5) at position 10 as read on dial scale assembly (11).
If reading remains low after another 30 minutes, increase solution strength by adding enough calcium
hypochlorite to raise one ppm per Table 2-3. Split additional calcium hypochlorite solution evenly between reservoir and
After desired chlorine levels are reached, go to step e.
Fill reservoir (10) with remaining hypochlorite solution from mixing bucket.
If periodic samples show dosage needs changing, repeat adjustment (refer to step c above).
Place cover on reservoir (10) and secure with velcro straps (12). No other action is required other than
periodically sampling in accordance with TB-MED-577 and FM 10-52-1, and refilling reservoir as necessary (referring to
Table 2-3 for calcium hypochlorite dosages).
2.7.4 Shutdown. Perform the following:
When unit is in short term shutdown, source water continues to flow.
Short term is defined as 0-36 hours. Long term is defined as 36 or more hours.
For short term shutdown of the hypochlorination unit, close the outlet ball valve (8, Figure 2-6).
For long term shutdown (refer to para 2.9).
2.7.5 Start Up From Short Term Shutdown.
Open outlet ball valve (8, Figure 2-6).
Test residual chlorine content (refer to para 2.7.3), adjust if necessary.