We have a lot of yards in this area that are thin and get scorched in the summer time due to the amount of sand in them ... I've been toying with the notion of offering some sort of service to help correct this. Here's what I'm wondering: Would a humic acid alone do well? Would topdressing alone do well? (And what formulation?) Or would it be a combo of these two? ... or something else? Bear in mind that what would be the ideal thing would be to get a service that gets great results with low costs but any views are welcome ... if you need to, you can PM or e-mail me if you have info that you don't want just anybody to have. Thanks in advance.