If you surface water sources for household use, slow sand filtration – or more accurately biologically active
filtration – may be an effective choice for water treatment. Slow sand filters can remove up to 99.99 percent of turbidity, bacteria, viruses, and Giardia lamblia cysts without the need for chemical flocculants or the use of electrical power. Slow sand filtration is a preferred technology for customers who:
â–º Wish to use surface water (ponds, streams, springs)
â–º Use daily volumes that make cartridge use impractical
â–º Have no access to electrical power
â–º Cannot or do not wish to use chemical treatment
Slow Sand Filters
