More and More water filtering info

Some construction tips and slow sand technology.

BACKWASHING a biological sand filter when the flow rate slows down. Forcefully backwashing a slow sand filter, particularly a small slow sand filter with layers of different sizes of sand, will destroy it. The flow rate is slowed by a buildup of material on the TOP FEW CENTIMETERS of sand. Simply gently agitating this layer and DRAINING OFF the cloudy water is all that needs to be done.

Now for the main site - David H. Manz the inventor.

More water info

That is the "old tech"

Now the BioSand filter.

Source water can not contain chlorine, soap or salt water as they will stop the bio-filtration process.

The BioSand Filter

A PDF of how the HydraAid BioSand filter works (Big file)

This PDF is a MUST READ!

It takes 5‐10 days for the biological layer to reach full maturity and effectiveness. During this time, the filter will become increasingly effective. Post filtering chlorination provides safe water during the period of time it takes for the biological
layer to form.

A PDF "manual" on water safety, and excellent read with lots of basic info.

A treasure of PDF files on how this type of filter is built and works.

Water, water, water

Our friends over at American Apocalypse posted about a drip water kit available from an on-line dealer, I was able to find out that you can order this from the manufacturer directly.

Ceramic Drip-Filter

"It is described as, "A ceramic, half-micron water filter. The micron removes water-borne bacterium. The inside of the filter is loaded with different media or ingredients, such as man-made carbons, mother nature carbons and man-made resins. Those different resins and carbons remove the different contaminants in the water."

See Filter Specifications

See Detailed Assembly Instructions

Ceramic Candle Water Filter