In addition to my experiences with using Primo Max I'd like to also add that in my situation I found the grass colour for the active period to be a dull murky green compared to the deep rich green that the fine leaf couch are known for when Primo is not applied. Same sort of appearance that can happen a day or 2 after applying an iron spray.
Also, if the lawn still needs to repair in some places its best not to apply to those spots.
