Converting a diatomaceous earth filter to bead filter.

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
O.K .. this is a tutorial on converting a Doughboy brand diatomaceous earth filter to a bead filter. "K1" type media. (I disassembled and thoroughly cleaned this filter before this build, and thread.)
001.JPG


this is what the internals look like...
bottom of ...basin
002.JPG


top assembly with down pipe and filter "V grid" septums (20 micron).
005.JPG

these filters are an upflow design, so the water enters the filter down the center down flowing pipe and out to flow up thru the media. normally the pictured "V grids" that are coated with diatomaceous earth. (skippy style)
the water flows thru the screen of Vgrids and thru the inner frames.
so you just undo this bottom Vgrid holding assembly by removing the pipe nut from the down pipe. (its threaded)...
007.JPG


then removing the Vgrids is easy, they just lift out...
009.JPG


when all are removed, it'll look like this...
010.JPG


now these holes you see are where the water exits the filter...so you'll want to block them from media getting stuck in them and clogging or obstructing flow. or even making its way into the pond. now I used this dollar store plastic mesh basket. (about 6" diameter). good for bio balls, but K1 may possibly fit thru. if using K1, use a mesh plant basket, or something with a smaller mesh.
001 (2).JPG


notice the ring of 2" pipe... it has a stainless steel screw thru it to lock the media blocking basket in place..
to make filling the basin with media easier,cut the downpipe below the basket and use a coupler. so you can fill the basin with media with most of the pipe sticking up. simply sliding the top part into the coupler.
I cut down the basket..no need for it, full sized...
001 (2).JPG

I think this explains it fairly well. but if you've got a question, go ahead, and ask...thanks for lookin' in!
 

Attachments

  • 001 (3).JPG
    001 (3).JPG
    117.5 KB · Views: 365
Last edited:

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
crap... loaded wrong picture.... heres the right one with the basket cut down.. lower holes in basket are small enough to keep out K1 media too....
001 (3).JPG

This also allows the coupler to be located higher up. This will allow more media to be put in easier.
 
Last edited:

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

Forum statistics

Threads
31,583
Messages
519,479
Members
13,870
Latest member
AliciaK669

Latest Threads

Top