How much product do I use?

[@iamnothing85]

Great investment I made for the Lawn maintenance. I mixed fertilizer, weed killer, pest control and soil enhancement and poured it into the system that connects to my sprinkler main line and kept it to low feed rate. The sprinkler system is connected to Rachio automation sprinkler system. The end result is auto fertilization on periodic interval and great resulting lawn. I invested $600 in total for product and labor for installation and the total mix fertilization costs $200 per year. this will give 1.5 yrs break even period as I am eliminating the fertilization company and it charges $650 for 10 application per year. This will now reduce it to apporx. $200 per year in fertilization cost going forward after 1.5 yrs break even.