See video above for installation instruction. For operation, start by mixing your preferred chemical solution to attack your resistant weeds. Since you are applying chemical directly onto the taller growing weeds, you can use a variety of chemicals at specific mix rates. For Round up, please follow the labels recommended 33% mix for weed wiper application. For Gramoxone, please use a 50% concentrate. For all other products, please follow the label or consult your field rep.Then, you will fill your tank with your mix over a safe area (Example: cement). Keep in mind that you will use significantly less chemical with a weed wiper. Once your tank is full, run a hose of fresh water over your sponges to get them saturated. After saturating the sponges, we recommend wringing out the sponges to get the excess water out of the system. This process helps ensure that the chemical will evenly distribute across each sponge when you begin to run your pump. Next, while over a safe area, turn on your pump for a few seconds to fill your sponges. The time needed to fill your sponges completely will vary because of size and pump models. However, your initial fill over safe ground will give you a better idea how long you will need to run your pump to fill your sponges. Run the system right up till the point where the sponges begin to drip. Once you have reached that point, simply turn off the solution and head into your field. During application, you can simply turn on your pump for a few seconds to re-fill your sponges on the go. Read the testimonies to hear about just how effective and easy to use our weed wipers are in the field. Give us a call if you have more questions.