HANSCRAFT SPATOUCH 3, User Manual

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Upkeep of the hot tub
Oxygen shock – in case of extreme pollution, it is necessary to treat the water with a
large dose of fast dissolving oxygen and thus perform an oxygen shock. The pH level
of the hot tub water has to be adjusted to 7.0–7.6 first and the oxygen concentration
in the water has to be checked. Once a week or after adding a large amount of fresh
water to the hot tub, add a shock dose of oxygen (2 tablets) into the water. Add the
oxygen only when there are no people in the hot tub. After you add the oxygen, turn
on the circulation pumps so that the chemicals mix well with the water. Let the oxy-
gen level drop to 15 mg/l before you start using the hot tub.
Store the chemicals according to the instructions on the label
Ideal chemical levels
Free chlorine concentration
(active oxygen concentration)
0.7–1.0 mg/l
(10–15 mg/l)
pH level 7.0–7.6
Calcium 100–180 mg/l
Overall alkalinity 80–120 mg/l
7 5 Cleaning the outer shell of the hot tub
Use a mild, not abrasive cleaning detergent and a soft cloth.
7 4 Replacing the water
It is important to keep the hot tub water fresh and clean. We recommend you to
replace the water at least every 3 months unless the water quality drops sooner. The
hot tub water can be used for watering the garden for example, given that it has not
been chemically treated at least one week prior.
a) Disconnect the hot tub from the power supply (turn off the residual current device).
b) Check the power supply cable and make sure it is not wet.
c) Drain the water through a water drainage system, close it carefully and fill the
hot tub with fresh water.
d) Connect the hot tub back to the electrical circuit (turn on the residual current
device).