don't be offended dobber. maybe mention to your brother that some customers might like a clear tipping policy given the ambiguous nature and timing of the service.
btw, tip and ask for a refund is ridiculous. also the bermuda grass is thriving. i'm going to spray again today, but the first application did nothing.
tipping, I know this is a thing with you. Honestly, it's my bro's place, I am going to tip well so they don't think my bro's bros are tight asses.
bermuda grass- You found the products I mentioned? Spray it again today and maybe again in another week. The earlier the better, but I said it is not easy to kill. Hopefully you can really knock it back. If you see some results this year that you like, try it earlier next year, before it really starts growing good. For what it is worth, I was too late to really knock mine back very far this year. I have neighbor that has basically let bermuda take over his yard and I just try to stop it from spreading too far into mine. Because of crappy weekends for lawn work and then family travel, I missed the best window here in the Carolinas. I will still spray to limit the spread and maybe kill off some of it, but I am pretty sure I will have some bermuda along the edge of my lawn all summer.