Folks - I need to scrub a basement concrete floor prior to repainting/waterproofing, and am looking for suggestions as to equipment with which to do this. The floor currently has two layers of paint-type stuff (I think the top layer might be something like Dry-loc ), which is peeling up in some areas, and there are some areas of efflorescence. Also, the floor is very rough and irregular generally, and hasn't been cleaned beyond minor sweeping in like 20 years. .
So, I need something that can do a good scrub on all that. I am not trying to remove the paint that is holding on well, nor am I trying to grind down the concrete at all. There seem to be a variety of devices (home depot rental stuff here:https://www.homedepot.com/c/floor_ca...oating-removal which are attached to rotary floor "polisher" type machines, but it's hard to tell which might be best for this job, and I thought I'd see who has done this and what you used.
Many years ago I did this for a much smaller area by hand, just using a hand sprayer and manual scrubbing and a shop vac to clean up, and it worked ok, but this is a much larger area - and my back is a lot older now. I don't mind buying (vs renting) if the cost is reasonable. Due to the amount of stuff we have in the basement that there is nowhere to move it to, we will have to do this job in a couple of rounds, so I might end up renting twice, which might make buying the better option.
Thanks for all suggestions, thoughts, pointers to specific equipment etc.