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| I need to cut about 6 feet in length and about 3 to 4 inch thick in vertical position into a septic tank... making a door entrance for the root cellar.
Have no power, I'm thinking by hand with chisel, or hire somebody with diamond saw. If I chisel by hand, then I can make a nice U cut, curve on top for better strength of door, not dealing with sharp corner. Then I need to extend door by about 4 feet, side concrete wall with roof, tie into the tank with rebar. I guess heaving square corners would work too if I tie rebars into it? This would make it easier pouring the roof.
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Follow-Up Postings:
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| If you do not want to rent/buy/borrow a generator use a star drill to roughly outline the opening and then start to work with a chisel and drilling hammer. An impact drill and some carbide bits would make shorter work of a large number of holes, reducing the chisel work needed. |
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- Posted by konrad___far_north (My Page) on Sun, Nov 13, 11 at 21:11
| Thank you so much Brickeyee! Some good hints here,...think I should invest in a generator, can you recommend any? |
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- Posted by sierraeast (My Page) on Mon, Nov 14, 11 at 10:01
| Or you can rent one of these along with the drilling advise given for the corners and the bottom where the saw can't get to. |
Here is a link that might be useful: saw
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| i have used the chisel and drilling hammer approach when I was younger and it works well, but it can make for a long day. At this point in life, I value my time more, so a gas-powered rental saw would be my tool of choice, particularly if I knew I would encounter rebar. Below is a link to an article on cutting concrete which has some interesting observations. |
Here is a link that might be useful: Cutting concrete
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- Posted by konrad___far_north (My Page) on Tue, Nov 15, 11 at 0:00
| Thank you all! I will take a visit to the rental and see. |
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- Posted by konrad___far_north (My Page) on Sun, Nov 20, 11 at 23:07
| Will this unit do for the job, running a hammer drill? I know...have not much to spare, it should run up to a 10 amp motor. |
Here is a link that might be useful: 1200W Generator
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| "it should run up to a 10 amp motor." Motors have a large current draw at start-up, but if you get the drill turning before starting cutting it might handle 8 amps. most of the generator power ratings are like Sear's "maximum developed horsepower." A pure fantasy. |
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