This paper presents the possibility of applying a colloidal solution of nanosilver in the closed circuit of pool water treatment. The applied nanosilver solution is characterized as having a very high biocidal effect. with no negative impact on either the human and animal body. or the environment. https://www.bekindtopets.com/flash-price-NBA-San-Antonio-Spurs-Canvas-Google-Pixel-5-Clear-Case-p44255-save-extra/