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It may also render other maintenance measures ineffective. If the pH value is too low, this can cause corrosion
of your fittings.

For better distribution, pH regulator (accessory) is added near the inflow or at several points around the
swimming pool (

not in front

of the filter).

The information on the product used is to be observed.

Disinfection:

The water in your pool should be an oasis of wellbeing and health, clear and hygienically clean. Due to
environmental influences, dirt particles, germs and bacteria are always entering the water. The latter increase
considerably at water temperatures in excess of 20°C. In order to prevent these influences, we suggest that
you use a so-called ‘oxidation agent’ in various forms. Primarily, these are stabilised organic chlorine products,
as these are easy to handle and have the best degree of efficiency. Approximately 3 in every 100 people have
an

allergic

reaction to chlorine products. In this event, we recommend that the oxygen method be used as an

alternative. There are two different chlorination methods: Shock or intermittent chlorination (rapid chlorination
granulate or tablets), e.g. when refilling the swimming pool or in the event of abnormal measuring results. The
second is long-term or continuous chlorination, where slow-release soluble chlorine products (long-term
chlorine tablets) are used, facilitating a constant release of chlorine.

The ideal chlorine value is between 0.3

– 0.6 mg/l.

Preventing algae growth:

Algae are micro organisms which provide nutrients for bacteria. In order to guarantee a hygienically clean
water quality, it is necessary to keep the pool and water free of algae. The use of chlorine alone cannot always
guarantee this, particularly with outdoor pools.

If you use a

foam-free

, liquid algae prevention agent, there will be no foam build-up in reverse current units

and fountains.

Flocculation:

Some dirt particles are so small that they are not captured by the sand filter (colloids). We recommend that
you use a flocculant to dispose of these. This increases the definition of the filter. Even the finest impurities
are taken up by the flocs or entrapped. The result is crystal clear water. Flocculants may be added as a
precautionary measure.

Perfect spring cleaning:

Spring cleaning is on the agenda – what's the best way to do it?

To make life easier for you, we have summarised the most important steps:

Remove coarse impurities

with leaf skimmers and rakes to prevent the pool drain becoming blocked.

2. Now allow your pool to drain completely so that you can also eliminate limescale and stubborn stains.

Draining the pool is necessary to ensure that the cleaning agents are effective, thus forming the basis
for hygienically clean water maintenance. Note: This does not apply to in-ground pools. Stability must
be guaranteed.

3. To clean pool walls and floors, we recommend the

basic cleaner

This is an acid cleaner which fights

limescale and encrustation. It does not attack plastics, but it should not come into contact with acid-
sensitive materials such as marble or the pool fittings. Apply the basic cleaner, diluted with water by a
ratio of 1:3 to 1:10 depending on the extent of contamination, and scrub the surfaces well. After 5-10
minutes’ contact time, scrub the surfaces again and rinse well. Caution: A membrane sponge or soft
membrane brush should be used. Do not allow the cleaner to dry, just to react.