Installation manual

23
TROUBLESHOOTING
Problem B
Pool green and no chlorine reading.
Chlorine is still considered the most effective way of destroying algae and bacteria in your pool
water. A chlorine residual of 1 to 3 ppm is considered desirable.
REMEDY:
Superchlorinate or manually shock the pool. This will raise the chlorine residual to a very high
level for a short period of time, and reduce chlorine demand.
1. Superchlorinate with a Clearwater chlorinator:
i) Backwash the filter.
ii) Adjust the pH to within the range 7.2 - 7.6. See ‘Tips on Water Chemistry’ on pages 20-21.
iii) Press the button marked ‘Super Chlorinate’. The Clearwater automatically increases its
output and runs for approx. 24 hours of pool pump time.
iv) After 24 hours, backwash the filter.
v) Re-adjust the pH to 7.2 - 7.6.
vi) Check the chlorine reading.
vii) If the chlorine reading is too low, repeat steps (iii) to (vi) until the chlorine reading
is satisfactory.
2. Manually shock with chlorine or oxidizing agents:
i) Backwash the filter.
ii) Adjust the pH to within the range 7.2 - 7.6 (See ‘Tips on Water Chemistry’ pages 20-21).
iii) Add 1 lb. granular chlorine or 1 gallon liquid chlorine or 1 lb. non-chlorine oxidizer per
10,000 gallons of water.
iv) After shock dosing, re-adjust the pH to within the range of 7.2 - 7.6 and check the
chlorine level before using the pool.The chlorine residual should be 1-3ppm..