i dont have a dirt dragon, but i have other tools that help accomplish the same task.
This was Heavy duty wood cleaner by bridgepoint put on at half the remommemded dillution,
not double strength but half strength. used sx-12 to extract, but on low heat. 150 degrees. you dont want to put high heat onto a hardwood floor. i used a white floor pad to agitate. and prep work is very essential when it comes to actually scrubbing. you need to remove as much sand as you can and make sure there is NO ROCKS that can get stuck in your pad.
This was Heavy duty wood cleaner by bridgepoint put on at half the remommemded dillution,
not double strength but half strength. used sx-12 to extract, but on low heat. 150 degrees. you dont want to put high heat onto a hardwood floor. i used a white floor pad to agitate. and prep work is very essential when it comes to actually scrubbing. you need to remove as much sand as you can and make sure there is NO ROCKS that can get stuck in your pad.