Henden Salt and Mineral Chlorinator Owners Manual
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HENDEN
INSTALLATION & OWNERS MANUAL
11. GENERAL INFORMATION
11.1 Pool water chemistry instructions
POOL WATER
BALANCE
Free Chlorine
(ppm)
pH
Total
Alkalinity TA
(ppm)
Calcium
Hardness
(ppm)
Stabiliser -
Cyanuric Acid
(ppm)
Recommended
salt Levels
(ppm)
Ideal
reading
/ range
1.5 - 3
Concrete &
tiled pools
7.4-7.6
Other surfaces
7.2-7.4
80 - 150
Concrete &
tiled pools
200-275
Other surfaces
100-225
25-50ppm
(15-25ppm if used
with an ORP
controller)
Not to be used in
indoor pools.
Depends on model
(see page 39)
To increase
Increase
output of
sanitiser.
Add chlorine.
Increase
filtration time.
Add Soda
Ash (Sodium
Carbonate)
Add Buffer
(Sodium
Bicarbonate)
Add Calcium
Chloride
Add Cyanuric
Acid
Add salt
To decrease
Decrease output
of
sanitiser.
Decrease
filtration time.
Add
Hydrochloric
Acid
Add
Hydrochloric
Acid or Dry
Acid
Partially drain
& refill pool
with lower
hardness
water to Dilute
Partially drain
& refill pool to
dilute
Partially drain
& refill pool to
dilute
Frequency
of testing
Weekly
Weekly
Weekly
Weekly
Regularly
Regularly
12. TROUBLE SHOOTING
No Chlorine Production - Check for:
1. No power to system
2. Insufficient flow from pump
3. Control set to manual off
4.
CHLORINE OUTPUT
set to “0” setting
5. Dirty cell
6. Filter needs back washing
7. Flow switch not connected or damaged
8. Salt level too low triggering low salt cut-out
9. Main house fuse blown
10. Pump faulty
Low Chlorine Production - Check for:
1. Dirty cell - clean if required
2. Filter needs back washing
3. Pool stabiliser too low
4. pH too high
5. Salt level too low
6. Running time inadequate
7.
CHLORINE OUTPUT
set too low
8.
POOL COVER MODE
accidently turned on
9.
SPA COVER MODE
accidently turned on
10.
WINTER MODE
accidently turned on
11. Pump faulty
12. Cell failing