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rrzepka
05-09-2005, 01:17 PM
What is the best way to get a clean, straight cut in PVC pipe? My task is to cut out the appropriate length in order to splice in a 3" x 3" 1.5" tee connection. When I've tried to cut PVC pipe in the past, I'm always a bit off from a true, straight cut.

The pipe in question is 3" in diameter, its located in an unfinished portion of my condominium and is slightly above eye level. Should I use a cabled saw, a PVC pipe saw or some other device? What should I do to ensure a straight cut?

-Robert

Bob's HandyGuy
05-09-2005, 03:39 PM
They have a tool made for cutting PVC. I never bought one since I don't do a lot of plumbing work. I just use my power miter saw. It gives a nice, straight cut if you ease the blade down slowly.

George R
05-09-2005, 05:29 PM
Take a piece of paper and tape it around the pipe, lining up the edges of the paper at the point where you want to make the cut. Trace the line of the paper onto the pipe with a sharpie. Remove the paper and then cut with a sawzall or a cable saw, depending on the access.

Dave Meers
05-09-2005, 05:53 PM
When making a cut with the PVC pipe in place, I put a metal hose clamp around the pipe (like a car radiator hose clamp) and use it as my straight edge. It helps make for a nice cut. :)

rrzepka
05-10-2005, 11:40 AM
Many thanks to George R and Dave Meers for excellent suggestions.

-Robert

hj
05-10-2005, 02:15 PM
Do not expect to get a straight cut if you use a cable saw.

Pewterpower
10-12-2006, 06:42 PM
I've used this garden tool lots of times. I think it's called a pruner, but I trim/cut branches and stuff with it. It works great on pvc, conduit, etc...

http://img.photobucket.com/albums/v318/pkovac/pruner.jpg

Verdeboy
10-12-2006, 09:14 PM
I'd like to see a video of you cutting 3" PVC pipe with a garden pruner. That would be pretty funny.:D

Gary Swart
10-12-2006, 11:03 PM
Maybe he has really big bushes and trees. Fortunately, the cut on PVC does not have to be to the nth degree of straight. Close will be just fine. The paper and hose clamps are good, also masking tape. Cutting 3" or 4" pipe in place can be a bit tricky. If you have really good access, a jig saw with a fine blade works pretty good. A cable saw will cut it, but is hard to keep straight. If the pipe is not attached, I find my band saw will give me a good straight cut.

Cass
10-13-2006, 04:23 AM
A sawsall with a long 24 TPI blade will make a straight enough cut for you.

Mikey
10-13-2006, 05:55 AM
I use a 12" miter saw for anything over 1". Produces a nice clean cut, but you've got to be sure to hold the pipe securely to prevent it from spinning. Haven't found a PVC pipe cutter yet that will produce a true square cut. I like the idea of using the lopper -- I'll give it a try.

Pewterpower
10-13-2006, 01:55 PM
No, of course not 3" :D
But I've used it on some pretty good size conduit.
That's what I get for steering slightly off-topic.... :p

Bob NH
10-13-2006, 04:53 PM
LOPPER?: But I've used it on some pretty good size conduit.

Conduit is not as brittle as water pipe. I would be concerned about cracking the water pipe.

Pewterpower
10-13-2006, 05:10 PM
Ya, it definately needs to be real sharp. Mine probably is not anymore, since I use it mainly on my mutant bougainvilleas from hell. I've cut branches 1.5" thick with this thing.
I got the idea at the hardware store where I saw one of the employees use the handtool cutter on some pvc. It went thru it like butter. So the next time I had to cut some pipe, I used my pruner/cutter/trimmer/lopper whatever the hell you call it!!! and it worked like a champ.
But you're right about cpvc. You could easily crush it, if you're not careful.
The bigger pipes, a mitre saw works great. A hacksaw is the WORST.

plumber1
10-13-2006, 06:03 PM
For about $8 you can buy a real pvc pipe cutter that will do a real good job.

But I'll be darned as to why you you don't just use a hacksaw blade.

molo
10-13-2006, 06:24 PM
Whats wrong with a hacksaw compared to garden shears to cut pvc? I am laughing, (but not too loud, because i have never tryed garden shears). Are they really easier than a hacksaw?

jadnashua
10-13-2006, 07:17 PM
WIth the right shears, it is about as fast as you can squeeze the handles...makes a nice, clean, burr-free cut. I've got a pair for up to 1.5", and it works great. Didn't cost me much, either. I've seen them for larger pipe, but haven't used one.

Pewterpower
10-13-2006, 07:57 PM
Hacksaw blades are too flimsy and have too much play. If you are cutting a large pipe, that blade will be all over the place.

Lancaster
10-13-2006, 08:07 PM
One guy I know (and only one) has a Ridgid tubing cutter with a special plastic-cutting wheel (as opposed to the copper cutting wheel).But it should be noted that he is for all purposes retired and does very little plumbing anymore.It does give a nice clean cut but I am sure its time consuming.Works for up to 2" PVC.

Dunbar Plumbing
10-13-2006, 08:56 PM
I use a cordless navigator and it makes little work of cutting even 6" PVC piping.

Been using it for two years and works great. http://img.photobucket.com/albums/v70/DUNBAR/3f_1.jpg

RioHyde
10-14-2006, 01:25 AM
A PVC saw, sawzall, hacksaw (no the blade isnt too flimsy), etc will work fine for cutting the PVC. An entirely "dead-nuts" straight cut, while ideal, isnt exactly necessary. Just get it close and it will be fine. Now if the cut is so crooked that only a fraction of an inch of one side of the pipe will be in the hub of the fitting while the other side of the pipe is bottomed out, well then we need "cutting lessons". If in doubt, make a wrap-around out of a piece of paper to mark the pipe or even get a band to secure to the pipe as a cutting guide. We arent talking about painting racing stripes on the space shuttle here.....lol

Good luck

Pewterpower
10-15-2006, 06:12 PM
I'm sure someone here must have some garden pruners like mine.
Will you please go cut a scrap of pvc with it so I don't feel so all alone in this thread???? :D

horzman
10-17-2006, 03:45 PM
they best way I found is using mitersaw.

RioHyde
10-17-2006, 04:17 PM
You must have some big time garden pruners if you can cut 3" pvc with them Pewter. I pity the tree.......lol