Hello all, I was wondering, do any of you offer deep root feeding? I have never offered this service, but have been asked by a few clients. I priced out the equipment I would need, but I have a few questions. 1. Is my Hypro D403 pump up to the job? 2. About how many PSI will I need to run at? 3. How do you charge for this service? What is the industry standard, by the bush/tree? time? quantity of product? 4. I have researched what ferts to apply, I think I have some very good ideas for what would be effective, but has anyone found some great product? 5. What injector do you have, and do you like it? Thank you for any help.