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Step 3DWC Module - Deep Water Culture
WHAT I USED
1 ea 2L pop bottle
1 ea small pop bottle w/cap
1 ea 13 inch piece of 7/16 inch Vinyl tubing (mine was a 12 inch scrap and was minimally long enough)
Hot melt glue
Approx. 4 inch piece of coat hanger wire
1 ea aquarium air stone
1/4 inch aquarium air tubing as required... at least 1 foot
WHAT I DID
1. Cut a 5/16 inch slot in one of the recessed groves on the bottom of the 2L bottle as shown.
2. Cut one end of the 7/16 inch tubing on an angle and insert same end just inside the slot. Put tension on the tube and glue in place as shown. I used two elastics to secure will glue cooled, which are in the rest of the pics and are not necessary, but could be used as min/max markers.
3. Bend wire as shown and use it as a clip, at the neck of the bottle, to secure other end of 7/16 inch tubing in a vertical position.
4. Cut a 1 inch hole near the top of the bottle, opposite the tube.
5. Using scizzors, cut the neck off of the small bottle and insert into 1 inch hole as shown. Use a small bottle as they are not "flared" like the 2L are and it makes for easier insertion into the 1 " hole.
6. Drill a 13/64 inch hole into the cap.
7. Insert air tube through through 13/64 inch hole and put the air stone on the end that will be inside the bottle (again, cap orientation).
8. Put cap on the "side" cap and adjust tube so that the air stone rests on the bottom.
NOTE : Stones, and any submerged hole for that matter, will clog over time changing the associated rates. Routine observations of the full cycle wouldn't hurt to keep wandering variants under control if necessary.
1 ea 2L pop bottle
1 ea small pop bottle w/cap
1 ea 13 inch piece of 7/16 inch Vinyl tubing (mine was a 12 inch scrap and was minimally long enough)
Hot melt glue
Approx. 4 inch piece of coat hanger wire
1 ea aquarium air stone
1/4 inch aquarium air tubing as required... at least 1 foot
WHAT I DID
1. Cut a 5/16 inch slot in one of the recessed groves on the bottom of the 2L bottle as shown.
2. Cut one end of the 7/16 inch tubing on an angle and insert same end just inside the slot. Put tension on the tube and glue in place as shown. I used two elastics to secure will glue cooled, which are in the rest of the pics and are not necessary, but could be used as min/max markers.
3. Bend wire as shown and use it as a clip, at the neck of the bottle, to secure other end of 7/16 inch tubing in a vertical position.
4. Cut a 1 inch hole near the top of the bottle, opposite the tube.
5. Using scizzors, cut the neck off of the small bottle and insert into 1 inch hole as shown. Use a small bottle as they are not "flared" like the 2L are and it makes for easier insertion into the 1 " hole.
6. Drill a 13/64 inch hole into the cap.
7. Insert air tube through through 13/64 inch hole and put the air stone on the end that will be inside the bottle (again, cap orientation).
8. Put cap on the "side" cap and adjust tube so that the air stone rests on the bottom.
NOTE : Stones, and any submerged hole for that matter, will clog over time changing the associated rates. Routine observations of the full cycle wouldn't hurt to keep wandering variants under control if necessary.
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