pump slurry pouch

5600 Multi-Media Filter — Media Loading Instructions

Multi-Media Filter Contents

The most common ingredients are sand, anthracite, Filter Ag, garnet, and filter gravel.

If you're getting a new multi-media filter from us, the gravel is left out. We use the advanced Vortech tank which does not need the gravel underbed.

The media should fill the tank to approximately 18 inches from the top. You should leave at least 18 inches of “freeboard,” or empty space, at the top of the media bed. The filter needs the freeboard space to lift and swirl the media bed during backwash.

Loading the Filter

The order of loading is not optional, although if you get it wrong, the filter itself will eventually rearrange the bed as it backwashes. The heaviest ingredients have to go on bottom.

For rebeds in a conventional tank, pour in the gravel first, then the 8-12 Garnet, etc. For new PWP units with Vortech tank, there's no gravel, so you pour in the 8-12 garnet first, then the 30-40 garnet, etc. In either case, you should end with a foot and a half or so of empty space (freeboard) at the top.

Loading Order for 10" x 54" Filter

Bottom Layer — 12.5 pounds of filter gravel. (Conventional filters only.)

Second Layer — 20 pounds of #8-12 garnet.

Third Layer — 25 pounds of #30-40 garnet.

Fourth Layer — 35 pounds of filter sand.

Top Layer — 25 pounds of anthracite.

Freeboard — at least 18 inches of empty space on top of the final layer.