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-   -   Cutting A Fire Hydrant Down To Size (http://www.diychatroom.com/f7/cutting-fire-hydrant-down-size-98274/)

IdleWild 03-13-2011 07:25 PM

Cutting A Fire Hydrant Down To Size
 
Hey all, i have a question that is... slight odd :wink:

I came across an old fire hydrant recently. (legally, i assure you.) There is two, three feet of cast iron pipe under the visible hydrant. It is about 7/8", 1" thick, and about a foot in diameter.
I want to remove this pipe, leaving only the visible segment.
what tool is the most effective for this? also, i would like to get the cut as snug up to the slight lip that is on the bottom of the visible hydrant.

Hope that makes sense, ask me about anything that doesn't! thanks for any information you can provide!

DangerMouse 03-13-2011 07:46 PM

A sawzall with a few metal cutting blades?

DM

LIHR 03-13-2011 08:02 PM

If it's a traffic break-away type use a hammer

Leah Frances 03-13-2011 08:09 PM

Pics! :thumbsup: One of my husband's college roommates had one (also through legitimate sources) his dad painted red. It was gorgeous.

TheEplumber 03-13-2011 08:34 PM

Not sure what yours looks like but I'd say use a big grinder or demo saw with a metal cut off blade. The hydrant pipe is probably made of ductile iron.

IdleWild 03-13-2011 11:17 PM

thanks for the input, guys! i'll check if it's a breakaway... that'd make this whole thing really easy.
I considered the sawzall, but i think it'd just be time consuming. thought maybe there's a faster way to do this. If i try it and it fails, well, i guess i'll go down to my local hardware store and rent something with a little more... beef :whistling2:

and sorry, i don't have any pics to post! it's currently under a couple feet of snow in my backyard. thought i'd get some ideas in mind before spring rolls around (which should be about now, but North Dakota is always a little late in that regard) so i can jump on it once snow melts. I already picked up some primer and fire engine red paint, ready to go! i was hoping to make it an interior decoration as opposed to something in my backyard, thought it'd be pretty cool!

TheEplumber 03-13-2011 11:28 PM

Better keep it indoors when finished or every dog in the neighborhood will be in your yard :jester:

AllanJ 03-13-2011 11:47 PM

I would use a saw, I was thinking of a circular diamond studded pavement saw if you can rent one of those.

I would not use a chain style cast iron pipe cutter or a hammer, too much of a risk of shattering the bottom of the hydrant.

WDR 03-14-2011 07:28 AM

In my area they are always bolted to the pipe so if it is made like that you could just un bolt it. There would still be a shaft in the middle that you might have to cut. I believe this is the break-away type mentiond erlier.

Bondo 03-14-2011 09:00 AM

Quote:

Originally Posted by AllanJ (Post 608819)
I would use a saw, I was thinking of a circular diamond studded pavement saw if you can rent one of those.

I would not use a chain style cast iron pipe cutter or a hammer, too much of a risk of shattering the bottom of the hydrant.

Ayuh,... I agree, Except, diamond blades are for stone,...

Use a carborundum blade for Metal...

fireguy 03-14-2011 12:03 PM

Are you in a fire district? If so, you probably cannot put it in a visible place, as that would be against the IFC

IdleWild 03-14-2011 03:07 PM

yeah that's also why i wanted it in my basement. no potential problems there. otherwise it woulda been my backyard, which isn't visible from the street.

I'll look into local tool rentals more, see who offers a pavement saw, and if there are multiple who offers it the cheapest.

thanks for the info!

Pistol Pete 03-14-2011 08:34 PM

Perhaps a local welding shop could cut it with a torch. I have no idea if that would be cheaper or more expensive than renting a saw, but it sure would be quicker.

WillK 03-14-2011 10:07 PM

Plasma cutter would be better than torch...

A soil pipe cutter won't cut that?

analyst 03-14-2011 10:23 PM

If it is ductile iron, you will burn out your sawzall regardless of blades & no snapper will touch it. I use an abrasive cut off blade on a 14" electric or gas operated saw. Cuts like butter, is fast and is the cheapest way too. Totally rentable stuff. You could use a wrap of det cord. :eek:


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