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I wanted a lightweight floaties filter to use in conjunction with Aquamira chemical treatment. I’ve made filters in the past, but found that they didn’t work well due to lack of a vent.
Materials:
2 oz. plastic bottle
Plastic drinking straw
Soda bottle cap
Filter media
Glue
This is what I did:
1. Saw the narrow (threaded part) off the top of the 2 oz. bottle.
2. Cut or saw the rest of the bottle in half.
3. Drill (or otherwise remove) the center part of a soda bottle screw-on cap.
4. Glue the soda cap to the top of the 2 oz. bottle.
5. Make a hole in the side of the 2 oz. bottle sized to accept a drinking straw.
6. Insert a drinking straw through the hole in the side of the bottle and put the end of the straw through the hole in the glued-on soda bottle cap. Cut the outside end of the straw to desired length.
7. Cut a piece of water filter media (such as aquarium filters) to fit into the cut-in-half bottle.
8. Screw the Floaties Filter onto a plastic soda bottle and filter by either submerging the bottle with the end of the straw above water, or by pouring water into the filter media. The straw vent allows air to escape as the soda bottle is filled with filtered water.
I tested this in my kitchen sink, using dried spices to simulate floaties. It worked fine in the kitchen. No field trials as yet.
6 grams / .20 ounces
