I have a couple of days off this week and thought I'd try cleaning my garage floor.

I'm thinking about renting a pressure washer.

Anyone have luck using a pressure washer, or is there a better way to clean concrete?

I'm also think of putting down a sealer of some kind if the floor turns out good.

 

A pressure washer will do it.
The rented washers sometimes come with different nozzles so, be careful. The pencil nozzle will score your concrete.

 

Muritiec (sp) acid well clean it and prep it for coating.

 

as Raoul stated, the 0* nozel is very harsh, will cut threw wood, concrete and small children. I know they even make a concrete washing wand, so you might check with the place. We normally do this a few times a year and you will be shocked at what you get out of the concrete.

 

Pressure washer will do the job.
Mine came with 4 nozzle heads
1) Soaper - gentle stream of water
2) White - medium duty (what I use for most applications
3) Yellow - a little stronger
4) Red - I have experimented with this nozzle, and it's scary, I actually carved my name in the driveway with it (good thing I re-sealed again this summer)

You should be fine with the white nozzle, and maybe the yellow on very filthy areas, just be careful with it, and get the feel for it first. Test it out on your neighbors driveway ahead of time.

Here's mine: Honda 11 HP (I could have bought a small ricer for what this thing cost)

 

GEESH! Carved your name in the driveway!??! LMAO!! DAMN! LOL!

I also appreciate the recommendation to test it on the neighbor's driveway first... HAHAHA!!

TOO FUNNY!


RP

 

Just don't carve your name in your neighbors driveway...

 

Anyone ever read the warning label on the back of a concrete cleaner bottle. It will make you think twice about using it.

 

I read Raoul's reply at least 3 times trying to figure out the joke before I figured out that their was no wise crack in it ...

one more word of advice about the pressure washer ... dont do it bare foot , a friend of mine sliced his toe open almost to the bone. Another thing is , don't get to close when washing the garage door unless you plan on repainting it ... and don't wash the dog with it

 

Sorry, I slipped up.
It will happen again.

Actually, renting a power-washer hits home for me. I didn't know anything about them and I put the wrong (most powerful) nozzle on. I almost used it to get wet grass off my fingers. I didn't but, I considered it. I thought it might hurt a little so I didn't. I had no idea I would have been picking my fingers up off the lawn until I saw what it did to the brick on my house.

 

If you don't already own a pressure washer, try some of the old tried and true TSP. Trisodium Phosphate cleaner works in most cases and costs very little.

 

I was pretty stupid my self washing my truck at a car wash once, i was going to wash my hand, well more attempted, and it freakin blew my skin right off on my wrist, i have a scar now, remember that...

 

Muratic(sp) acid from sherwin williams. It works great. Just watch
the fumes.

 

Muriatic Acid = Hydrochloric Acid = HCl

You can get it from a pool chemical supply store. It's cheap stuff. Anybody who has a pool would have it sitting around somewhere. Good for taking out rust stains too. I use it on my boat to get the stains off the plastic.

Didn't realize it would work on grease too.

It's an acid, so usual precautions apply.

BTW, it eats through concrete if left on too long. I'd also dump a box or two of baking soda on it when you're done, to buffer the acid instead of just washing it off.

 

I let it sit for about 45 minutes, especially on the greasy spots.
No problems with that amount of time. Oh, a cheap pump sprayer
works great to spray it on. Just use caution.