Manual

14
COMMON TERMS:
Algae-Microscopicformsofplantlifewhichenterthepoolbyrain,windanddust.Therearenumerousvarieties
-somearefreeoatingwhilstothersgrowonwallsandincracksandcomeindifferentcolours.Somearemore
resistant to chemical treatment than others.
Bacteria-Thegermsthatcontaminateyourpool.Introducedbyswimmers,dust,rainstormsandotherelements.
Balanced Water-ThecorrectratioofmineralcontentandpHlevelthatpreventspoolwaterfrombeing-corrosive
or scale forming.
Chloramines-Compoundsformedwhenchlorinecombineswithnitrogenfromurine,perspiration,etc.
Chloramines cause eye and skin irritation, as well as unpleasant odours.
Chlorine Demand-Thechlorinerequiredtodestroygerms,algaeandothercontaminantsinthepool.
Chlorine Residual-Theamountofchlorineremainingafterchlorinedemandhasbeensatised.Thisisthe
reading obtained with your test kit.
Cyanuric Acid-Alsoknownasstabiliserorconditioner.Itreducesdissipationofchlorinebydirectsunlight.
Liquid Acid-ChemicalusedtoreducethepHandtotalalkalinityinthepoolwater,andforcleaningchlorinatorCell.
ppm-AnabbreviationforPartsPerMilliontheacceptedmeasurementofchemicalconcentrationinswimming
poolwater.Ippm-lmg/L.
The appropriate chlorinator size for your pool is dependent on the local climate and the bather load of the
pool. Please note that chlorinator cell life can be increased with shorter running times during winter and
loweroutputsettings.Daveyrecommendsthatachlorinatorisrunforbetween6-8hoursadayduring
summer, and 4 hours during winter.
GENERAL INFORMATION:
NOTE:
RECOMMENDED POOL WATER CHEMISTRY
POOL WATER
BALANCING
Free Chlorine
(ppm)
pH
Total Alkalinity TA
(ppm)
Calcium Hardness
(ppm)
Stabiliser –
Cyanuric Acid
(ppm)
Optimum
Salt Level
(ppm)
Ideal Reading / Range 1 – 3
Concrete &
Tiled Pools:
7.4-7.6
Other Surfaces:
7.2-
Concrete & Tiled
Pools–80-120.
Other Surfaces –
125-150
Concrete & Tiled
Pools–200-275.
Other Surfaces –
100-225
25 – 50 4000 – 6000
To Increase
Increase output of
chlorinator. Add
chlorine. Increase
ltrationtime.
Add buffer
or soda ash
(Sodium
Carbonate)
Add Sodium
Bicarbonate
Add Calcium
Chloride
Add Cyanuric
Acid
Add Salt
To Decrease
Add Muriatic
Acid
Add Muriatic Acid
or Dry Acid
Partially drain &
rellpoolwithlower
hardness water to
dillute
Partially drain
&rellpoolto
dillute
Partially drain
&rellpool
to dillute
Frequency of Testing Weekly Weekly Weekly Weekly Regularly Regularly