Does the pool design use Biochar for the microorganisms? I know that microorganisms love biochar, but also biochar is in itself a filtration for water.
of course, here you are: teichschwimmer.com/produkt/teich-klar-10l-box-made-in-austria Unfortunately we do not have an English webshop yet. You also find information on how to use it and how much, here (but so sorry, you will have to translate it): teichschwimmer.com/knowledge-base/mikroorganismen-inkl-produktinformation Best regards, Ines
