Naturpooler i Sverige: en studie av naturpoolens reningszon, med fokus på växtval, skötsel och nordiskt klimat

Abstract

Natural swimming pools are an alternative to conventional chlorinated pools where water purification occurs through biological processes involving plants, microorganisms and substrate. In these systems, the regeneration zone plays a central role in maintaining water quality, and plant selection becomes a key factor for long-term function. This study examines plant selection in regeneration zones of natural swimming pools in a Swedish climate, with particular focus on purification function, plant establishment and operational challenges. The study combines a literature review with a qualitative interview study including both professionals working with water purification systems and private natural pool owners. The results show that plant selection often reflects a balance between functional species with high biomass production and decorative species chosen for aesthetic qualities. The findings also highlight several challenges related to Nordic climate conditions, including low winter temperatures, short growing seasons and slow biological establishment. In addition, plant growth and maintenance requirements may influence long-term management of the systems.