Homemade gravity filter

8th May 2017

This is my homemade gravity filter. It is constructed from a 9″ x 6″ plastic container that has a clip on lid. 2 holes were drill top and bottom at the end. and plastic pipe was fed through the holes into the box. The pipes were drilled with several holes to create a spray pattern.

I placed a wire mesh at the bottom of the bow to prevent the foams blocking the outlet pipe. I also used silicon sealant to glue an overflow pipe vertically at the end of the box. This is to create a bypass of the foams to allow the water to escape the filter box if the foams become blocked.

There are 3 layers of foams installed black course, green medium, blue fine density, I have also placed a pad over the top to catch any debris, this can easily by rinsed and replaced.

The top spray inlet will be fed from a 500 litre per hour power head from Aqua one.

 I will post again with the results and observations of my testing process.