To make the level indicator float - simply cut a piece of 1/16 inch balsa wood into a large "match stick" shape so that it can easily side up and down inside the indicator tube. Now all you have to do is either glue on a small piece of styrofoam to add buoyancy or use it without as a dipstick. Either way, apply a coat of clear wood sealer to the stick to keep it from getting waterlogged. You can use a plastic drinking straw in place of the balsa wood stick if you can find one long enough. Try your local convenience store as sometimes they have extra-long straws for their Super-Sized fountain drinks.

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Growing Soilless

Growing Soilless

This is an easy-to-follow, step-by-step guide to growing organic, healthy vegetable, herbs and house plants without soil. Clearly illustrated with black and white line drawings, the book covers every aspect of home hydroponic gardening.

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