9
Care and maintenance
3.1.3 pH value
3.1.4 Use of disinfectant
3.1.5 Adding fresh water,
changing the water,
emptying the whirlpool
3.2 Cleaning and Maintenance
of the surface
The pH-value in the whirlpool should be between 7.2 and 7.4. This is the
ideal level for a disinfectant to work most efficiently and the water feels soft
to the skin and is not corrosive. The strong addition of air when the massage
jets are in use means that there can very quickly be a big increase in the pH
value. It is therefore necessary to lower the pH manually. This is done by
adding pH reducers, normally approx. 7 gr. per 1000 litres of water to reduce
the pH value by 0.1. The pH value should be measured and regulated at least
1 x week.
The installed ozone generator supports the disinfection. If the pool is
used daily by 2 persons an additional disinfection becomes necessary.
Chlorine or oxygen should be used. For the correct concentration, follow
the manufacturer’s or product recommendations. In the case of inorganic
chlorine, for example, 0.6 to 1 mg/l should be used. The disinfectant is best
applied in the form of tablets which can be placed in the skimmer baskets.
Notice: The ozone generator switches off when the massage pumps are
activated.
Through the disinfection of the water in the whirlpool, salt deposits build
up. To keep this build-up as low as possible, fresh water should be added.
This is why after every bath the whirlpool should be topped up to its normal
level, 13 cm below the rim. A complete change of water should take
place approximately every 8 weeks.
The whirlpool should be emptied as follows:
- Set the main switch to the „off „position.
- Attach the hose to the check valve.
- Open the check valve and allow all the water to drain out of the pool.
The surface of the pool is sanitary acrylic and the cabinet is made of smooth
polyester, making it easy to clean. Marks should always be removed using
plenty of lukewarm water and a soft sponge to avoid any scratches of the
surface.
Limestone and metal should be washed down with an acidic cleaner such
as a mixture of vinegar and water.
Dirt and scum marks can be removed with lye. Care must always be taken,
however, not to use foaming cleaning liquids, powders or creams on the
acrylic surface of the whirlpool as any residue could bubble up when the
whirlpool is in use.
Do not use cleaning agents in pressurized containers! Do not clean stainless
steel with acidic products!
Dull surfaces can be polished up so that they shine even after years. A
special surface polish called „Poolfinish“ is available for just this purpose.
This is applied with a soft cotton cloth and polished with gentle circular
movements. Minor scratches can also be removed this way.
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