Richard bray

Total Cost: $1,297
Tools:

• Drill
• Small drill bit (X-3/8")
• Jigsaw
• PVC glue
• 100% silicone
• Caulk gun
• Dope tape
• Measuring tape

Directions4
Step 1.
Remove the bars on the top of one IBC tote. Use a jigsaw to cut out the top of the IBC tote. This will be the fish tank. Place the fish tank on top of 4 evenly-spaced cinder blocks.
Step 2.
Build the swirl filter:

• Drill a 1" hole 2/3 of the way up one 55-gallon barrel.

4 System design plans: http://www.fao.Org/3/CA2 5 49EN/ca2 5 49en.pdf
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• Drill another 1” hole 90° to the right of the first hole, and a few inches higher.
• Attach the male and female threaded to slip adapters together through the hole with o-rings between them.
• Drill a third 1” hole at the bottom of the barrel.
• Attach the male and female threaded to slip adapters together through the first hole with o-rings between them. Attach a 4" length of 1” PVC on the inside of the barrel, and a t-fitting on the end.
• Attach a 3” length of 1” PVC on each side of the t-fitting.
• Attach a 1” 90° elbow on the end of each 3" length of 1” PVC pipe.
• Attach the male and female threaded to slip adapters with o- rings on each side to the bottom hole. Attach a 1” length of 1" PVC on the outside of the barrel.
• Attach a 1" valve to the 1” PVC pipe.

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Step 3:
Build the biofilter:

• Drill a 1” hole at the same height as the 2nd (higher) 1” hole in the swirl filter.
• Connect a male and female threaded to slip adapters together through the hole with o-rings between them. Attach a 4” length of 1” PVC on the inside adapter.
• Connect the higher hole in the swirl filter to the biofilter with a short length of 1” PVC pipe attached to the adapters.
• Attach a 1” t-fitting to the end of the 4” length of 1” PVC.
• Cut 2 pieces of 3" long 1” PVC pipe.

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• Drill small holes in the 2 pieces of PVC pipe.
• Attach the two pieces on both sides of the 1" t-fitting.
• Attach 1" caps on the ends of both pieces of PVC. You may need to glue these caps on.