TREATMENT FOR SAND FILTERS
Concentrated grease and oil dissolving liquid. Powerful descaling and algaecide cleaner for filters and sand. Use when the installation is interrupted in winter.
DOSAGE
Maintenance: wintering at the end of the summer season. Add directly
5 l. of QUIMIDREN PS for pool filters up to 100 m³.
At the beginning of the season, wash and rinse until the filter is clean.
At the beginning of the season: add double the amount of QUIMIDREN PS and leave to soak for two days. Then wash and drain the filter.