K Box Cones1. Select your tubA wide range of tubs are suitable. They must be self-stacking if you are not planning on using a rack and you want to have more than one level. Tubs can also be nested because of the conical shape of the overflow pipe. |
 Remember: Water is heavy. You must be able to safely stack and move filled tubs. For this reason, for manual handling, small tubs (to carry 15 litres or less of water) are better than large tubs. If you want to use large tubs, a drain hole in the base to facilitate emptying before moving is useful. |
2. Cut a hole in the base towards one end of your tub.We have used a 92 mm diameter hole saw for these tubs. |
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3. Cut the cone height to suit your tub and the depth of water you would like.You can also drill holes in the sides of the cone to allow partial or full draining (depending on the water flow rate through the system) at a lower water depth. |
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4. Apply sealant to flangeAn aquarium silicone sealant is applied to the base of the flange before fixing it in place to ensure a watertight junction. |
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5. Attach the K Box to the baseWe have used self-tapping stainless screws (pan head 8 gauge 3/8 inch) for attaching the Cone to the tub base. For starter holes in the base we have used a 2.5 mm drill. We have also effectively used stainless bolts (10 mm long, 3 mm gauge) instead of screws for this purpose. |
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6. Presto!Let the sealant dry and the K Box tub is ready for use. |
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Stacked
Nested
Remember: The system works by the Cones being offset from the ones below and above. When the tubs are stacked for use, the Cones are not directly above one another. When the tubs are nested for storage, the Cones are directly above one another.
