Power Washer/Weed Spray

[dkees]

The manual says not to use my power washer to spray weeds (chemical killer.) At first I thought it may have something to do with damaging the pump. But, there's car wash, window soap, etc. that can be used.

I can't see why loading the tank with weed killer can't be done. I also realize this would not be a precision operation and that achieving the proper mixture ratio would be most likely impossible.

But, this application is for weeds in the middle of nowhere that I just want to blast.

Any experience?

Thanks

 

[gunlovingirl]

I think most weed killers would be pretty corrosive and damaging to seals and other such things in your washer. I wouldn't chance it. Better to spend $20 on a pump up sprayer.

 

[max]

Some of that stuff can hang around forever. In a couple of years you wash your car and get it on you and you get sick. I would not want to do it.

 

[BarbC]

A dedicated sprayer is less than $20.

What we do is get a sprayer for each chemical and label the sprayer "Weed Killer" "Bug Killer" or whatever.

We buy the desired concentrate and use a dedicated Dial-N-Spray for that particular chemical to achieve the dilution power we want and spray that into the dedicated sprayer so we don't have to keep measuring, then apply as necessary.

(Who am I kidding with this "we" business?? "He" does it. )

 

[Farmer17]

If you don't like the work of pumping the "pump up" sprayers you can buy the type the fits on a garden hose and you fill it with concentrated weed killer. They seem to work pretty well for me, but I notice most of the professionals use the back pack pump sprayers, so they probably mix the chemicals and water at a more accurate ratio. Sometimes the chemicals will "gum up" and ruin a cheap pump up sprayer so I would never risk them in an expensive power washer.