Hi everyone, a quick story and then a question. I have a vacant lot that I intend to build a house on. My original intention was to spray the entire lot with a generic equivalent to 41% Roundup. I did spray about 25% of the lot and everything is dead. I wanted to do it all and then plant grass seed until I was ready to build. The lot is total weeds. One of my neigbors doesn't want me to spray anymore. Said the doctor found herbicide in her system. I kept several feet in from the property line and her lawn is unaffected by the spots I sprayed, but that's okay, I won't spray anymore. I'm going to buy some Pramitol 5PS Granules and kill everything. I know nothing won't regrow for at least 1 year and that's fine, I won't have to keep it mowed. 1st Question. How far can this stuff leach over. I'm going to use a drop spreader, but I want to get as close to the property line as I can without it leaching over to her yeard. 2nd Question. This stuff is supposed to prevent any re-growth for at least 1 year. I suspect in 2 years the house will be built and it will be time for a lawn. Think I'll be able to get it to grow 2 years after. Thank you in advance for your replies. Just a quick edit. Lot is 80' X 120' and city water, not well.