Monday, January 18, 2010 / 6:20 AM
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DIY JOURNAL
January 2010 Issue
This issue is the continuation of the last DIY Journal on the DIY canister filter, below are the materials used and instructions:
Container
Sponge filter parts
Sponge filter parts
Parts with plastic tube removed
Marking on the cover
Cut hole
Fit in parts and give fast twist to fix it in position
Top view
Bubble tea straw cut to length
Fit into inlet tube
Make sure around 0.5cm gap between container bottom and straw to allow water flow
Seal up with silicon glue
Bottom view seal both sides
Close up of glue
Close up of bottom
Marking on the cover
Cut hole
Fit in parts and give fast twist to fix it in position
Top view
Bubble tea straw cut to length
Fit into inlet tube
Make sure around 0.5cm gap between container bottom and straw to allow water flow
Seal up with silicon glue
Bottom view seal both sides
Close up of glue
Close up of bottom (Suggested: Partially loosen the tube to apply glue then fit it back allowing the glue to fill in the creaks between container cap and tube)
Top close up
Cut up plastic cup removing top and bottom part using the mid portion
Apply glue and attach to bottom of container to create gap for water flow and support sponge
Filter media and ceremic rings 
Cross-section diagram
Water is drawn into filter via water pressure and is forced through filter media thus filtering it.
Top close up
Cut up plastic cup removing top and bottom part using the mid portion
Apply glue and attach to bottom of container to create gap for water flow and support sponge
Filter media and ceremic rings 
Cross-section diagram
Water is drawn into filter via water pressure and is forced through filter media thus filtering it.Air pumped into outlet is less dense than water and thus floats up carying water along with it. The pressure exterted by the air is expelled through the shortest route, which is the outlet. When pressure is expelled from outlet, inlet have less pressure thus creating flow.
Water lever in both inlet and outlet is the same; the air and air pressure naturally acts as an external force to allow the water at outlet to flow above the inlet
Estimated Price if produced in bulk:
Estimated Price if produced in bulk:
*= can be used for more than one filter
Container $3.90
Sponge filter $1.50
*Silicon Glue 1 tube $3.00
*Bubble Tea straws $1.50
*Sponge or Cotton $1.00
*Ceremic Rings $2.00
Plastic Cup $0.00 (can be taken from food courts etc.)
Total $13.40 (taken into consideration several of the more expensive things can be used for more than one filter)
Tools used: a simple penknife, scissors, a saw can be also used instead of a penknife
Posted by: SPAQ
