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Old 09-26-2011, 11:26 AM   #16
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Originally Posted by mobiledynamics View Post
JOMAMA45 -

Any advice.

I plan to score and BFH (big fuggin hammer) and CHIP with a TEC60 2 holes for access for a checkvalve - access to drain pipe in my concrete basement. They're around 8" by 3' access holes I plan to make

Any tips on keeping dust to a minimal ?.....
The dust from notching out the hole from the saw is inevitable...
Everything else is just brute force I suppose.
I do this on a fairly regular basis, and I can only recommend using an electric saw in side with either a water hook-up direct or someone spraying water directly on the front of the blade. If you saw 4 clean lines, and over-cut them to full depth (it doesn't hurt to cut them on a slight angle either, so they're somewhat tapered, and they get smaller as you pull them out), you should be able to install a long anchor or two into them & pull them out by hand (might need a second person) w/o the need for any hammering or pounding. This approach makes it far cleaner & easier to patch as well. Just make sure to set-up some plastic, cardboard, etc... behind where you're sawing to catch the inevitable "rooster-tail" of slurry from the sawing process.
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Old 09-26-2011, 01:09 PM   #17
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thought about the elec, too, as we also have a 14" bosch w/wtr feed,,, need to also use the gfi protector & i don't recommend that method to diy'ers who don't have experience.
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Old 09-26-2011, 06:53 PM   #18
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Originally Posted by itsreallyconc View Post
thought about the elec, too, as we also have a 14" bosch w/wtr feed,,, need to also use the gfi protector & i don't recommend that method to diy'ers who don't have experience.
I guess it's the lesser of two evils in my mind. I may have said it here before, but years ago I thought I killed an elderly HO with CO2 poisoning from sawing. I refuse to use a gas-powered saw inside a house since then.
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Old 05-03-2013, 03:50 AM   #19
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Where can I get a concrete saw fixed in Baltimore city
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