Rainwater can be used in hydroponic nutrient solutions.
Hydroponic plants grow in specialized systems without any soil. The plants' roots are exposed to air and are flushed regularly with a specialized liquid solution that contains nutrients. The solution is typically created by mixing nutrient powder with tap water but can also be made using collected rainwater. One advantage to using rain water is that it does not contain the high levels of hard minerals and thus will not cause buildup on your hydroponic system. Does this Spark an idea?
Instructions
1. Set a clean barrel, trash can or other tall container near one of the down spouts of your home. The container should be lead-free and not have been used to store any type of chemical or cleaner. Saw a square hole in the lid of the container that is approximately 5 inches by 5 inches.
2. Place a ruler at the bottom of the container and measure up approximately 1 to 2 inches. Insert a 3/4-inch drill bit into a drill and create a hole at this location.
3. Cut a two-inch diameter hole approximately two to three inches from the top of the container using a hole saw. This functions as an overflow and allows excess water to escape. Staple a three-inch square piece of wire mesh to the inside of the barrel, covering the hole to prevent insects from getting in.
4. Separate the two parts of the spigot by unscrewing them. Apply a thin line of silicone caulk around the flat edge of the main spigot and insert it into the 3/4 inch hole on the outside of the container. Apply silicone around the back part of the spigot and insert it through the hole on the inside of the barrel. Screw it on clockwise until it will no longer turn.
5. Use a hack saw to cut off the down spout approximately four to five feet up from the ground or at the location where it meets the top of the container.
6. Attach a flexible gutter tube to the downspout using a gutter connector and insert the other end of the hose into the hole in the lid of the container.
7. Wait until it rains and then place an empty, gallon-size milk container under the spigot. Fill the container with water until it is full and then pour out two to three tbsp. of water to allow room for mixing.
8. Add the amount of nutrient powder as directed by the product packaging, usually around one tbsp. Place the lid on the milk jug and shake it vigorously to dissolve the powder.
9. Remove the cap from the milk jug and pour the solution into the water reservoir of your hydroponic growing system.
Tags: approximately inches, hole container, inside barrel, nutrient powder, spigot insert, with water, your hydroponic