Ideal package for small 10 m³ to medium-sized 30 m³ pools to start the swimming season without worries. The package contains all the important components of a professional pool chemical to regulate the pH value and guarantee crystal-clear pool water for at least 1 month (42 days for 10 - 30 m³)*. Enjoy a relaxed summer and let our BWT App help you determine your water values with the 5in1 Pooltester. The various active ingredients complement each other optimally and keep your pool water in a visually and hygienically perfect condition.
*The period can vary depending on pool size, weather conditions and bathing volume. Longer periods are possible for smaller pools.
Hazard warnings
Use biocidal products carefully.
Always read the label and product information before use.

Attention! Observe danger and warning notes! Keep out of reach of children!

H302 Harmful if swallowed
H314 Causes severe skin burns and eye damage
H318 Causes severe eye damage
H319 Causes severe eye irritation
H335 May irritate the respiratory tract
H410 Very toxic to aquatic organisms with long lasting effects
EUH031 In contact with acid, emits toxic gases
According to EC directives GefStoffV
test (2)
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The pH value characterises the acidic or alkaline state of the water.
With either our digital BWT Pooltester 5in1 or the BWT ICO Station as a smart pool tester that sends you all the important water values, including dosing recommendations for pool chemicals, to your smartphone.
To dose water care products correctly, it is important to know the exact amount of water (m³) in the pool. This can be calculated as follows:
  • Rectangular pool: length (m) x width (m) x average water depth (m) = pool capacity (m³)
  • Round pool: Diameter (m) x diameter (m) x average water depth (m) x 0.78 = pool capacity (m³)
  • Oval pool: Max. Length (m) x Width (m) x Average water depth (m) x 0.89 = Pool capacity (m³)
  • Octagonal or freeform pools: Max. Length (m) x max. width (m) x average water depth (m) x 0.85 = pool capacity (m³)
No, each product is mixed separately and must also be added to the pool water separately.
No, the tester is specially adapted to the BWT AQA marin test tablets.
Yes, basically all values are important to achieve a high water quality, as these values are often in interplay with each other.
This is algae growth in an advanced stage. First, the parts of the pond with less flow (corners) are attacked. The colouring corresponds to the respective type of algae (e.g. green algae). The only thing that helps here is a shock disinfection with chlorine or active oxygen after the pH value has been adjusted.
In normal temperatures we recommend checking the values once a week. In case of very warm temperatures and frequent use of the pool, the water values should be checked more often.
Bad chlorine odours usually occur when there is too little free chlorine (less than 0.3 mg/l) in the water. This can be remedied by replenishing the fresh water and adding virtually soluble chlorine to a free chlorine level of 0.5mg/l.
First, you should add BWT Water Care pH-Plus while the circulation is switched on (approximately the volume corresponding to the added pH-Minus) and check the pH value with our digital pool tester 5in1 or the BWT ICO Station as a smart pool tester until it is in the optimum range of 7.0 to 7.4.
As soon as the pH value moves upwards, the addition should be stopped and measured cyclically. Continuous circulation is very important to ensure even mixing of the pool water.
All functions except the chlorine measurement basically tell the data about the pool water.


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