Monday, May 5, 2014

How Is The Sediment Backwash Filter For Removing Sediment From Well Water?

Dear sir,

I have a well system which has always had a significant sediment problem. I currently use a mesh filter followed by 2 inline filters. After a month with the new filters are loaded with brown dirt which shows in the toilet bowls. I'm considering a backwash filter for sediment removal, can you send me information or tell me how they work?


Dear Paul,

Sediment backwash filters work by removing sediment from water and then automatically backwash the sediment out. They are able to filter down to 5 microns without the need to change filter cartridges, and work great for removing fine particles, dirt, and rust.

sediment backwash filter cutaway 
These backwashing filters contain Chemsorb Filter Media. Chemsorb is a high purity, low sodium, natural, zeolite mineral (14 x 40 mesh) and has an ANSI/NSF Standard 61 Listing. The material is mined, crushed, dried and double-screened, and sized to produce a quality filter media that has a high through-put capacity at low differential pressure.

Compared to filter sand and some other filter media, you can get more water through at higher flow rates without as much pressure drop or pressure loss. The filter granules physically filter and trap the suspended solids. In addition, the granules remove a wide range of colloidal and soluble, inorganic, metallic, contaminants by surface absorption, chemical-binding, charge neutralization, coagulation, reactions and/or ionic, ion-exchange phenomena. In short they are good water clarifiers, better than the traditional sand filters.

If there are very large sediment particles present such as flakes, sand, grit or hard clay particles, a 60 mesh filter strainer (sometimes called “spin-down” filter) can be installed prior to the sediment backwash filter. In extreme cases where the particles are sub-micron, an ultra-filtration system is needed or a final 25/1 micron filter is recommended.

These systems are quick to install by any plumber or person familiar with basic plumbing. The filter system is connected to piping after your pressure tank:

plumbing diagram
Thanks for writing to us and we hope this can help solve your problem. Try viewing our Sediments page if you would like more information about removing sediments from well water. If you have any further questions, or would like to update us on your progress - we love pictures and testimonials! - you can reach us at or on Facebook. Thanks for the letter!