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Bueno Spa Boston Manual

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27
WATER TREATM E NT BASICS
The chemical equilibrium of the water
The hot tub water will be clean and clear if its chemical com-
ponents are in equilibrium.
1. pH value:
The first important indicator is the pH value of the water.
pH is measured on a scale of 0-14 where 7 is the neutral
value. The ideal value is between 7.2 and 7.8 pH. pH values
out of this range may irritate the skin.
Under this value the water is acidic, above is basic. The
pH value of the human eye is around 7.5, below 7.2 and
above 7.8 the water will sting the eyes. Most problems are
caused by the pH value being too high. An improper value
reduces the effect of the disinfectant.
A high pH value can cause the following problems:
• The disinfectant can be ineffective.
• The solution can exude solid matter.
• The water can become turbid.
• Can cause skin irritation.
A low pH value can cause the following problems:
• The water can become turbid.
• Can cause eye irritation.
Rain or adding fresh water will change the pH value of the
water.
2. Disinfection:
Disinfectant is the chemical that eliminates or neutralises
the microorganisms (bacteria, algae, fungi, viruses) pres-
ent in the water. Microorganisms are small microscopic
organisms which cannot be detected by the naked eye
and are continuously getting into the water through rain,
wind, and the bodies of the bathers. If they are not elimi-
nated, they pass from one person to the other through the
water (and may cause sickness, infection). Organic matter
turns the hot tub water opaque and cloudy.
As we are dealing with warm water hot tubs, bromine or
active oxygen is most often used.
3. Preventing growth of algae:
In addition to the disinfection of water the prevention of
growth of algae is another key issue. Algae can grow even
if proper disinfection and filtration is performed.
Antialgae treatments only work with appropriate pH
values.
4. Water hardness:
Water hardness is determined by the quantity of calcium
and magnesium salts dissolved in the water. Hard waters
contain too much of these dissolved salts and thus scale
will form if left alone. Scale can cause significant damage
to the walls of the hot tub, piping, filter, heating, and en-
gineering units. In Hungary water is medium hard. Water
hardness cannot be reduced by the addition of chemicals,
but formation of scale can be prevented.
5. Frothing:
Froth is the smaller-bigger agglomeration of the bubbles
and colloid contaminants found on the surface of the
water. It is mostly caused by mixing of dirt, cosmetics,
body lotions, etc. that soak out of the human skin and
the chemicals. It endangers conservation of the aesthetic
appearance and cleanliness of the water.
6. Water analysers:
There are several types of water analysers which are
mostly used to measure chemical and disinfectant effect.
Chemical (pH); Disinfectant (Br, O3)
Tester types:
Box containing tablets and graduated measuring glass.
Litmus paper indicators in a box.
Chemicals should always be loaded into the filter housing.
Then proper disinfection of the hot tub balance if the
chemical levels are not at least 48 hours below the speci-
fied value.
Even with the most accurate disinfection after 2-3 months
the water quality is no longer maintainable and it is nec-
essary to replace the entire water quantity. In this case we
advise you an extensive shock-like disinfection with algae.
Dissolve a tablespoonful of algae in the hot tub water and
run the engines for 15 minutes. After switching it off for 5
minutes switch it on for another 1-2 minutes, then drain,
clean, and rinse the hot tub.
ATTENTION!
Using alcohol- or acetate based cleaning products for cleaning
the hot tub is PROHIBITED!
The manufacturer is not responsible for damage resulting
from the use of such chemicals.
The chemical treatment of the water should only be done by
persons under 18 years of age under parental supervision.
Maintenance should only be performed by qualified profes-
sionals.
HOT TUB MAINTENANCE
Do not expose the hot tub to sunlight! Without a thermal cov-
er direct exposure to sunlight can cause discoloration in the
water. Use a hot tub cover when you are not using the hot
tub, whether it is filled with water or not. Do not expose the
hot tub to rain or snow. If possible, build a covering shelter
for the hot tub.
The side coating of the hot tub should be protected from
high UV exposure (e.g. HOT TUB BAG) and cedar hot tubs
should be periodically treated with UV-resistant products.
The coating is lined with UV-resistant paint, but because of
the previously mentioned factors there is no guarantee that it
will prevent fading of color. With cedar coated hot tubs wood
treatment is recommended yearly.
1. Periodically drain, clean, and refill the hot tub. We recom-
mend utilizing professional service for the refill.
2. Clean the filter once a month.
3. Shower before stepping into the hot tub.
Maintenance is recommended in the following periods:
• Weekly and before every use Check the hot tub water - see
the basics of water treatment
• Every 3 months
• Change the filter cartridges
• Every 3 months Change the hot tub water - see draining the
water
• Yearly Inspection of the hot tub is recommended - call a
professional for proper inspection.
WATER TREATMENT BASICS
… 27 …


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