Hi Helen,

Since I haven't heard back, I think I'll be returning the concrete prep tool to Home Depot this evening. It's $130/day for the disc + the machine itself, and it would need to be back in tomorrow morning by 9am anyway. If you want to give it a go in the basement, you can just rent it for another day yourself at whatever time works best for you. I was able to transport the thing myself, in the passenger seat of my small car, from the HD in Oakland (Emeryville doesn't seem to have tool rental). 

I successfully finished doing the floor in our storage/lab room, but I recommend that we look for a better solution to do the main floor in CCL - possibly hiring some professionals that may have tools that do a much better job at containing dust. This prep tool also doesn't deal with crusted-on chewing gum well (and this storage room used to be the green room for the heavy metal bands that came through here in the 80's and 90's...), so I had to scrape most of it off by hand, and then go over it again with the tool - ugh. 

No idea how well it would deal with the paint on the floor in the basement...

Patrik


On Sat, Sep 20, 2014 at 3:52 PM, Helen Finkelstein <hefinkel@gmail.com> wrote:
Patrick -

Do you have the tool?  Can we borrow it?  The downstairs kitchen also needs grinding, but we thought we would have to rent a grinder.   Do folks think the concrete prep tool would work on the kitchen floor? 

Helen

On Fri, Sep 19, 2014 at 12:13 PM, Patrik D'haeseleer <patrikd@gmail.com> wrote:
Hi all,

I have an unexpected chunk of free time on Saturday, and I was hoping to use it to start prepping the floors in CCL. Should be done well before the CR event at 6pm.

I'm not planning to use a heavy-duty grinder, just a concrete prep tool like this. I've never used one of these, but I would still expect it to make a substantial amount of noise - at a minimum like running a high-powered vacuum for a couple of hours. I may try to cut down on dust by running it wet, if that is an option.

I know this is short notice, but I hope we can make it work - the floors are the #1 obstacle holding up progress getting our lab up and running right now, and there's just not that many times I can carve out a big chunk of time.

It would be good if someone can check this with John as well, since we'll be making noise right underneath him...

Thanks!

Patrik

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