As ACP said, you need to thoroughly clean the grout and often i use an acid cleaner to etch it so the color sealer sticks really well.
Done properly it will last years.
I charge $1.75 - $2.00 per sq ft.
1) Depends what kind of stone it is.
2) If its sealed or not.
3) If its polished or honed.
The photo never showed up.
I use GM for almost everything.
Highly polished travertine i use Zep neural cleaner with 1/2 - 1 scoop of GM per gallon and my TM with spinner at less than 1000 psi.
I started my business targeting restaurants until I found out how nasty they are.
I would have to be at $1.50 - $1.75 sq ft to make any money.
Often the grout is completely gone.
Many times had to scrub and clean areas 3-4 times to get the grease off.
Sometimes it took hand scraping the grout...
When you do the estimate take some stripper and a razor blade and do a test spot to see how thick the wax is.
Then charge accordingly.
I second the posts on here about using a shop vac if the wax is anything more than one coat.
Using a spinner and TM is like using a Porsche to plough a field...
Jimbo and Mrotto have it right...the customers you want will wait.
I love referrals and recommendations, they want YOU.
Its the perfect sales model.
No stress, just steady work at great value for both parties.
Hey, we've all won the dumbass award.
I was shredding belts on my blower until I learned about vacuum relief [emoji28]
Using a spinner on smooth concrete with zero vacuum relief.
Smoke started pouring out of the van and then bang, no vacuum.
I was like WTF?
Black shredded rubber all over the...