Intex PureSpa SJB-HS-20-1C Owner's Manual

299
A
S AVE THESE INSTRUCTIONS
(299IO) SPA (JET + BUBBLE) ENGLISH 7.5” X 10.3” PANTONE 295U 08/20/2018
English
Page 19
Particular care should be taken with chemical treatment of the water with special attention to disinfectant limits
and control of pH values. The use of ozone or UV, where applicable, shall always be accompanied by residual
disinfection with an oxidising biocide (e.g. Chlorine or Bromine or other biocide products, compatible with
manufacturer’s recommendations).
Improper use of chemicals may result in degradation, damage and other imperfections of the spa surface and
other spa components (typically discolouration of materials, corrosion of metal parts).
Free chlorine:
is the chlorine residual present in the spa water.
Result if too low – Inadequate level of disinfection.
Result if too high – cause odor problem, skin & eye irritation, corroded metals and other materials.
pH:
a value that indicates how acidic or basic the spa water is.
Result if too low – Corroded metals, eye & skin irritation, and destruction of total alkalinity.
Resultiftoohigh–Scaleformation,cloudywater,shorterlter/heaterruns,eye&skinirritation,poorchlorine
efciency.
Total Alkalinity (TA):
indicates the degree of the water’s resistance to pH change. It determines the speed
and ease of pH change, so always adjust total alkalinity before adjusting the pH level.
Result if too low – Corroded metals, eye & skin irritation. Low alkalinity will cause the pH to be unstable.
Resultiftoohigh–Scaleformation,cloudywater,shorterlter/heaterruns,eye&skinirritation,highchlorine
demand.
Calcium Hardness (CaCO
3
):
refers to the amount of calcium and magnesium dissolved in the water.
Resultiftoolow–Difcultybalancingwater,corrosionofmetalcomponents,eye&skinirritationandwater
foaming.
Resultiftoohigh–Scaleformation,cloudywater,eye&skinirritation,difcultybalancingwaterandlter/
heaterinefciency.
Saturation Index (SI):
temperature, calcium hardness concentration, total alkalinity and pH represent the
mainfactorsinuencingscaleformation.Thetendencyofwatertoeitherformscaleorcorrodeisindicatedby
the Saturation Index (SI):
SI = pH+TF+CF+AF-12.1
*Where: TF = Temperature Factor; CF = Calcium Hardness Factor; AF = Total Alkalinity Factor
SPA WATER CHEMISTRY AND BALANCE (continued)
Water Temperature
TF
Calcium
Hardness (ppm)
CF
Total
Alkalinity (ppm)
AF
(ºC) (ºF)
8 46 0.2 75 1.5 50 1.7
12 54 0.3 100 1.6 75 1.9
16 61 0.4 150 1.8 100 2.0
19 66 0.5 200 1.9 150 2.2
24 75 0.6 250 2.0 200 2.3
29 84 0.7 300 2.1 300 2.5
34 93 0.8 400 2.2 400 2.6
40 104 0.9 500 2.3 -- --
Test the water pH, Temperature, Calcium Hardness and Total Alkalinity levels. Use the equivalent Factors in
the SI equation.
SI = 0, Balance
If SI > 0, Scaling or cloudy water condition.
If SI < 0, Corrosive to metals or eye & skin irritating condition.
The SI is considered satisfactory if the value is within -0.3 to +0.3 range. Zero being perfect.

Intex PureSpa SJB-HS-20-1C Specifications

General

Brand	Intex
Model	PureSpa SJB-HS-20-1C
Category	Swimming Pool
Language	English