Bucket trickle Filter

By Mark Coleman

The following plans posted on the Sydney Cichlid Forum by Mark show how to build a massive capacity trickle filter. You will build this:

To do the same job as this: ( A commercially available and expensive wet & dry trickle filter

Go to the Hardware store and by a bucket $10. Drill a hole in the side of the bucket, about 2 inches ( 5 cm ) from the bottom, (to allow for a sludge sump). Cut some wide diameter plastic PVC pipe so that you can stand them in the bottom of the bucket and mount a grill on it (put some cuts in the end that will be the bottom), I use that white plastic checker mesh for the grill. The grill needs to be just above the hole you made. Now fill the bucket with a media of some description, I have used scoria rocks here but thave since up graded to Bio_balls because I got them cheap. Cover the scoria / Bio_Balls with a circle of filter wool. The schematic diagramme (Below) show the basic construction of the filter.

Above view of the filter showing Scoria & filter wool

Nest is the lid and spray bar set up. The most expensive part of your filter will be this bit. (The spinner). You must mount the spinner into the centre of the lid.

Other than some end caps, the rest is just pipe. The photo shows an exploded view of the spray bar assembly.

This is what it should look like (the lid & spray bar assembly) when assembled. I have cut holes in the lid to assist gas exchange ( no idea if it helps or not *shrugs*)

That's it, water goes into the top and comes out the bottom!

Stand the bucket in a deep plastic tray, put your pump and heater in the tray (careful not to have the heater touching plastic!) and you're up and running.

All photos by Mark Coleman, article by Mark Coleman.

Schematic diagramme redrawn by David Midgley (based on a diagramme by Mark Coleman).

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