Hole sawing concrete


  #1  
Old 05-29-02, 07:47 PM
M
Member
Thread Starter
Join Date: Jan 2002
Location: USA
Posts: 39
Upvotes: 0
Received 0 Upvotes on 0 Posts
Hole sawing concrete

I have a large ornamental two-tear water fountain in my backyard. There are no drains in either large bowl making a clean up very difficult. If I could saw (drill) a large 1 1/2" - 2" hole in the bowl, I could more easily flush out the dirty water. Finding a plug to reseal it should not be a problem.

The bowls are made of concrete, but it is a very fine grain aggregate and may even be laced with a fiber glass fabric.

Does anyone have any suggestion for cutting such a large hole in the concrete? Thickness at the point where I need the drain is about 2".
 
  #2  
Old 05-29-02, 08:45 PM
MeffaDawg
Visiting Guest
Posts: n/a
Depending on how close you plan to go to the edge of the fountain, I would consider drilling a series of holes close together in a circle using a small diamater drill bit, then work your bit over to connect the holes you've just drilled. Mark it out first with a marker and follow along your mark.

You could clean up your work with a Dremel tool or a fine file.

Obviously a main concern is breaking your fountain, and I think you'd be better served using a smaller bit than trying to get it all at once with a large one.

Do you think you'll be able to drill a spot that is rather flat? Curved areas are more likely to give you a problem.
 
  #3  
Old 05-29-02, 09:52 PM
M
Member
Thread Starter
Join Date: Jan 2002
Location: USA
Posts: 39
Upvotes: 0
Received 0 Upvotes on 0 Posts
The obvious always evades me. The multi-drill hole approach may work well. Thanks.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: