Take your weed wacker and get most the weeds out of the way. Then spray it with a generous and strong amount of SH. Let it sit for a day or so and then come back and clean and re-sand. Then you’ll know it’s done right.
Yes I always spray some weed killer if there were previously a lot of weeds. I have had weed killer leave a white residue that i had to use some efflo cleaner on, it came right out but i had to come back to re-sand since it was now wet from cleaning. Only has happened once
Oh one more thing, when using the polymer sand, the youtube video shows the guy brooming it in then lightly spraying it down.
Doesn’t it have to be gently blown off the top first? Am I better off using the regular kiln dried sand as there is a pretty good chance the weeds will come back?
Use polymeric. Push it good with the broom. Make sure everything is dry and keep using the broom. The polymeric has some glue and when you water it gently will get activated and hardens.
No more weeds trough.
After that ,a nice water based sealer ( I use IP250WB Stone Age High Def WB Paver Sealer here in Florida).
Be sure to lightly use blower after you sweep in the sand. And whatever you do don’t use the crap stuff they sell with the cement in it for the polymeric. I like to use the Polyseal. That way you won’t have a white haze when you’re done and need to acid wash it before you seal it. I run into that crap all the time.
Of all the work out there, why are you messing with pavers and sand. If you can spell “pressure washing” with the letters in the work you do, then you aren’t pressure washing. Come to think of it, maybe that’s why I don’t do gutters anymore. You can’t spell “pressure washing” with gutters, window washing, mobile detailing, painting, grass mowing or panty hose. The last one doesn’t really belong, but you can’t spell pressure washing with it.
Funny you say that, customer’s kid just stood there staring at me when I was getting my stuff out of the truck. Guess he’s seen a few ‘Contagion’ style movies.
Update, customer opted to save $100 and sand it themselves. Here’s the final result. I used my 1500psi fan to blast out the garbage in between, then surface clean. The strong pretreat Sunday really helped.