The Hozon siphon mixer is made of solid brass and is manufactured with a built-in backflow preventer. It is designed to siphon from a bucket of concentrated solution filled with 16 times the recommended rate of the product for each gallon of water. As the water from the faucet passes over the siphon, it dilutes the concentrate 16 times, or back to the original recommended rate. Complete directions and recommendations are printed on the package.
Here are the company's instructions:
Since the Hozon™ proportions at 1:16, under normal conditions the concentrated solution should be made at 16 times the recommended rate. Example: If a fertilizer recommendation is 2 TBSP per gallon for hand watering, you would make the solution at a rate 16 time greater than the 2 TBSP rate (i.e. 16 x 2 = 32), so 32 TBSP per gallon would be the concentrated rate. When mixed with water from the hose, the solution will come out the hose end at the recommended rate of 2 TBSP per gallon. The Hozon™ will draw one gallon of concentrate in about five minutes and this will be mixed with approximately 12 to 18 parts of water through the hose, depending on the flow rate. A larger diameter hose, i.e. 5/8” instead of 1/2”, will give a larger flow rate. Excessive back-pressure will cause the siphon to stop drawing. Adjustable nozzles should not be used or should be wide open for best results.