Home depot.  For the oxalic acid crystals they may be in a concrete cleaner
or wood deck restorer packaging.

-----Original Message-----
From: list-manager@stoneandtilepros.simplelists.com
[mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of Mitch
Heitman
Sent: Friday, 1 August 2014 10:53 AM
To: sccpartners@stoneandtilepros.simplelists.com
Subject: Re: Grout cleaning

Great!  Thank you for the help. I've never used the chemicals you listed
below, am I able to get these products at a local cleaning supply store or
is there somewhere special to get them?

Thanks,

Mitch Heitman
Owner
Perfection Cleaning & Restoration
Of South Florida
Office:954-971-7991
Cell: 954-901-1327
Toll Free: 855-717-0200
Web: callperfectionnow.com
Corporate Office: 1500 W Copans Rd Unit A3 Pompano Beach, Fl 33069

> On Jul 31, 2014, at 8:47 PM, "Mike Marsoun" <nulifesc@bigpond.com> wrote:
>
> I had some travertine with filthy grout and embedded into the pores
> dirt, NOTHING worked: strong alkaline with HOT water spinner,
> Klenztone with the spinner (and zero degree nozzle)  This is what I
> did and it worked beautifully. Sometimes you have to break a few
> eggs...  I made a mix with 10% hydrochloric acid and a tad of neutral
> cleaner to make it lay. Sprayed lightly over an area, then sprinkled
> generously oxalic acid crystals over the area and brushed it in with a
> coarse broom. There is a reaction and the soils rise to the top like
> nothing I have ever seen.  Then extract with the spinner and it is
> like new, 100% clean.  This is the MOST effective way to get
> travertine with embedded dirt clean. This was a honed finish surface I did
and the sheen was restored with a couple quick passes with a grit brush.
> If the finish is polished it will need to be polished with 5x. It
> won't need any sanding.
>
> -----Original Message-----
> From: list-manager@stoneandtilepros.simplelists.com
> [mailto:list-manager@stoneandtilepros.simplelists.com] On Behalf Of
> Mitch Heitman
> Sent: Friday, 1 August 2014 2:43 AM
> To: sccpartners@stoneandtilepros.simplelists.com
> Subject: Grout cleaning
>
> Hi everyone,
> I was called to a job that the homeowner wants the grout cleaned on
> this stone. He installed the floor himself and has many different
> types of stone through out it. We went to give him a sample and I
> mopped a 12ph alkaline cleaner on it and scrubbed the grout lines and let
it dwell for ten minutes.
> Then I used my 1200psi portable with spinner tool. It made no
> difference whatsoever. Usually on tile and grout we can use a strong
> acid and it cleans the grout perfectly. However we all know that acid
would destroy this floor.
> Color seal isn't an option because the grout lines are all different
> sizes and the stone has a tumbled edge, so i think it wouldn't come out
very well.
> Has anyone come across this before? I also attached a picture of the
> sealer he used on it because I believe the sealer is keeping us from
> getting the chemical into the grout deep enough to clean it? He also
> wants to go back with a color enhancer to brighten the floor. I have
> not used a color enhancer before since I usually clean regular ceramic
> tile. Is there anything I should know in order to put it down? Other
> than just putting it in a paint tray and applying it with a window
cleaner?
>
> Thanks for the help
>
>
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