Question 1

Why does my pool water turn green again after treatment?

Accepted Answer

Several factors may explain why your water turns green quickly after an initial treatment:

Filtration system issues

Your AR125 pool is equipped with a synthetic filter cartridge (10 μm, 1.27 m² filtration area). If the water turns green again despite treatment, first check:

The condition of the filter cartridge: Clean it regularly under a low-pressure water jet. A clogged cartridge reduces the effectiveness of the chemical treatment.
The circulation duration: The system recommends circulating the pool water once a day. If you only run the pump for a few hours, the chemical treatment does not act on all the water. Increase the daily operating time.
Rest cycles: Maintain at least 2 hours of rest between each operating cycle (the system operates a maximum of 4 hours continuously).

Insufficient chemical treatment

Use appropriate chemicals (chlorine and algaecide) according to the manufacturer's instructions. The rapid appearance of algae often indicates a lack of regular chemical treatment or insufficient concentration. Gradually increase the doses if the problem persists.

Environmental factors

Prolonged exposure to sunlight without a cover, stagnant water, or a pH imbalance can promote the reappearance of algae even after treatment.

Question 2

How does the return jet system of the AR125 pool work?

Accepted Answer

Operation of the return system

The return jet of your GRE AR125 pool is the central element of the filtered water circulation. Here’s how it works:

Complete circulation cycle

Intake: Water from the pool is drawn in by the skimmer located on the surface
Filtration: The water passes through the filter at a flow rate of 3.8 m3/h
Return: The filtered water is discharged into the basin through the lower return jet

Components of the jet

Your jet includes:

A inner jet that passes through the liner (pool wall)
A friction ring and sealing gaskets that ensure tightness
An external part that screws tightly against the body of the skimmer with a 13 mm wrench

Main objective

This continuous circulation ensures that all the water in the basin regularly passes through the filter to remain clean and crystal clear. It is therefore an essential element of the treatment and hygiene of your pool.

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