The main purpose of a sand filter is to collect stormwater, rid it of pollutants, and then discharge the water into the storm sewer system. First, water is routed from an impervious surface to the ...

Upfront costs are higher with DE filters. But, Wells says, “They make up for it in their ability to provide better filtration.” This option features a large tank filled with sand.

The New LifeStraw Go Series Water Filter Tumbler in Teal. From work to workouts and all the refills in between, LifeStraw's new 18-oz stain ...