Idraining The Tub; Iwinter Shutdown; Other Treatments Concerning Water Maintenance - Jacuzzi Experience Alimia Manuel D'installation

CAUTION:
It is advisable to dissolve the grains beforehand in
a bucket, or to use a special basket available from
specialized distributors. The Manufacturers specif-
ic instructions and recommendations must be care-
fully followed for use of the above substances.
When chlorine is added to the water, part of it is wasted on con-
tact with impurities, a part (combined chlorine) blends with ni-
trogenated substances forming chloroamines and another part
remains available for disinfection: this is the so-called free chlo-
rine, which should be present in the amount of 2÷3 mg/l.
Set the water filtering cycles according to the intended use
of the spa.
Do not let the free chlorine level drop to below the recom-
mended value (2÷3 mg/l).
After each hydromassage, or at least daily, it is a good idea
to carry out a chemical control of the pH and the amount of
chlorine in the water, as is done with swimming pools.
NOTES
- if the chloroamine level (combined chlorine with nitrogenat-
ed organic substances) becomes high, it can cause the so-
called "chlorine smell", and also irritating effects for the eyes
and skin. In this case, it is advisable to carry out super-chlo-
rination (shock treatment).
- if an ozonator is installed, keep in mind that the ozone, which
is added from the bottom and mixed with the water, helps to
disinfect and purify the water.
Use of the ozone generator normally reduces the need for
chemical water treatment additives and therefore also reduces
costs.
I
DRAINING THE TUB
Periodically, the spa must be drained in order to ensure that
water is changed and to clean the tub. This operation depends
on a number of factors, including frequency of use of the spa,
number of users, water quality, type of contaminants in the wa-
ter, etc. If the spa is used only by the family, good water qual-
ity may be maintained for several weeks, whereas more in-
tensive use may make it necessary to change the water sev-
eral times a week.
WARNING
Before emptying, make sure that the chemical addi-
tive values in the water are within the permitted limits.
If in doubt, contact the local authorities.
DO NOT EMPTY THE WATER INTO A SEPTIC TANK.
I
WINTER SHUTDOWN
In areas where winter temperatures frequently drop below 0°
C, during the period when the spa is not in use it is advisable to
completely drain the system (spa, compensation tank, pipes, fil-
ter). In these situations, valves will also be provided for complete
drainage of the pipes that connect the spa, the compensation
i
tank and the ( 1a, 1b, 1c - detail 31).
In areas where temperatures are only occasionally below 0
°C, the spa can be kept in operation, provided it is equipped
with anti-freeze protection that ensures water is kept at a min-
imum temperature (see the paragraph on maintaining a mini-
mum water temperature in the chapter on method of water
heating").
I
OTHER TREATMENTS
CONCERNING WATER MAINTENANCE
Anti-algae treatment
To be carried out at the beginning of each season (and period-
ically) using a specific product; it is advisable to contact a serv-
ice centre or a specialized dealer for the relative amounts and
methods of use.
Flocculation treatment
This treatment is necessary to eliminate any microscopic parti-
cles that could make the water cloudy; a treatment that is, how-
ever, not recommended for spas, as the substances used may
clog the filter and reduce its efficiency.
Formation of foam
Products are available to reduce the formation of foam in the wa-
ter, normally caused by the presence of soap, suntan oils and oth-
er substances. The interaction of these substances with hot wa-
ter, in particular with a high pH level (high alkaline content),
causes the formation of foam.
Oily film or cloudy water
These situations are often due to insufficient water filtering, but
are also caused by sunscreen oils, lotions and cosmetics. It is
possible to add flocculants to cause the contaminants to coag-
ulate into globules which are sufficiently large to be handled by
the filtering system. These globules may however clog the filters.
The addition of flocculants therefore makes the water clearer,
but may require the sand in the filter to be changed more fre-
quently.
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