299
A
S AVE THESE INSTRUCTIONS
(299IO) SPA (JET + BUBBLE) ENGLISH 7.5” X 10.3” PANTONE 295U 05/30/2018
English
Page 18
MAINTENANCE AND CHEMICALS
Water Sanitation
The spa owner must regularly check and keep the spa water sanitized with scheduled maintenance (daily, if
necessary). Adding sanitizer and other chemical will control bacteria and viruses present in the spa water.
The maintenance of a proper water balance through appropriate use of sanitizers is the single most important
factor in maximizing the life and appearance of the spa tub as well as ensuring clean, healthy and safe water.
Proper technique is important for water testing and treating the spa water. See your pool/spa professional for
chemical, sanitizer, test kits and testing procedures questions.
CAUTION:
ALWAYS FOLLOW THE CHEMICAL MANUFACTURER’S DIRECTIONS, AND
THE HEALTH AND HAZARD WARNINGS.
Do not add chemicals if the spa is occupied. This can cause skin or eye irritation.
Concentrated chlorine
solutions can damage the spa tub. In no event is Intex Recreation Corp., Intex Development Co. Ltd., their
related companies, authorized agents and service centers, retailers or employees liable to the buyer or any
other party for costs associated with the loss of spa water, chemicals or water damage.
WARNING
Always unplug this product from the electrical outlet before removing, cleaning, servicing or
making any adjustment to the product.
SPA WATER CHEMISTRY AND BALANCE
Parameter
Value
a
Water clarity
clear view of the bottom
Total Alkalinity (TA) in mg/l
60 to 120
Calcium Hardness (CaCO
3
) in mg/l
150 to 250
Colour of the water
no colour should be observed
b, c
Turbidity in FNU/NTU
max. 1.5
(preferably less than 0.5)
Nitrate concentration above that of fi ll water in mg/l
max. difference of 20 compared
to the fi ll water concentration
Total organic carbon (TOC) in mg/l
d
max. 4.0
Redox potential against Ag/AgCI 3.5 M KCl in mV
min. 650
pH value
e, f
6.8 to 7.6
Free active chlorine (without cyanuric acid) in mg/l
0.3 to 1.5
g
Bromine in mg/l
2.0 to 4.0
h
When using alternative/additional disinfectants other appropriate parameters may be considered.
a Consult national regulations and guidelines for any deviations.
b Natural water sources may introduce water colouration.
c Intentional water colouration is excluded.
d When using organic compounds this value may be higher.
e Subject to the fl occulant(s) used (if any).
f When pH is greater than 7.5 the free active chlorine is less than 50 %.
g Commonly recommended concentration of free chlorine in aquatic settings is 0.3 to 1.5 mg/l. However,
in order to ensure water hygiene in the spa setting where the water is heated and the water volume to
user ratio is low, it is acceptable to temporarily exceed this concentration with manual dosage, provided
the health of the user is not compromised. Therefore, a range of 2.0 to 4.0 mg/l is acceptable as also
recommended by the U.S. Environmental Protection Agency and the Center for Disease Control. Do not
use cyanuric acid.
h Temporary exceeding due to manual dosage and low water volume to user ratio is acceptable, provided
the health of the user is not compromised.
