clearing conduit blockage: Electric  -- Home Building Discussion Forum and Review clearing conduit blockage: Electric -- Home Building Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index

Kubota Tractors
  Kubota News
  Kubota Price
  Kubota Review
John Deere Tractors
  John Deere News
  John Deere Price
  John Deere Review
New Holland Tractors
  New Holland Tractor Price
  New Holland Tractor Revie
Other Tractor Brands
  Articulated Tractors
  Belarus
  Bobcat Tractors
  Case
  Cub Cadet
  Hinomoto
  Kioti Tractor
  Long
  Massey Ferguson
  Mitsubishi
  Other Tractor Brands
  Other Tractor News
  Shibaura
  Yanmar Tractors
Lawn and Garden Tractors
  Craftsman
  Cub Cadet Garden
  John Deere Garden
  Kubota Lawn Garden
  Other Garden Tractors
  Simplicity
  Toro Wheelhorse
  Ventrac Lawn Tractors
Antique Tractors
  Allis Chalmers
  Case David Brown
  Farmall IHC
  Ford
  Ford 9N 2N 8N
  Fordson
  Harry Ferguson
  John Deere Older
  Massey-Harris Ferguson
  Minneapolis Moline
  Oliver Cletrac Cockshutt
  Restoration
  Tractor Pulling
Tractor Attachments Implements 3ph
  Back Hoe
  Field Mowers Brush Cutter
  Grooming Mowers Finish Mo
  Loaders
  Snowblowers / Snow Plows
  Tillers and Ploughs
  Tractor Implements
  Trenchers
  Wood Chippers 3PH
Tractor Maintenance
  Diesel Fuel Lubrication E
  Tractor Engine Repair Reb
  Tractor Tires
Utility ATV
  All Terrain Vehicles
  John Deere Gator
  Mule Utility Vehicles
General Tractor
  Farming Ranching Agricult
  Photo Contest
  Size Tractor Needed
  Tractor Projects
  Tractor Safety
  Welding
Chinese Tractors
  Jinma Farmpro Agracat
  NorTrac Tractors
  Other Chinese Tractors
Cars
  All Brands
  Audi VW
  BMW
  Car Tires and Maintenance
  Chrysler
  Exotic, Sports, Racing
  Ford Cars
  General Motors
  Honda
  Hyundai
  Mercedes
  News
  Nissan
  Subaru
  SUV and Trucks
  Toyota Cars
Trucks Trailers
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
  Chevy Pickup Trucks
  Dodge Pickup Trucks
  Ford Pickup Trucks
  Toyota Pickup Trucks
Home Building
  Alternate Electric Energy
  Barns Pole Barns
  Buying Ranch Farm Acreage
  Carpentry
  Contractors
  Electric
  Excavation
  Moldings Finish Trim
  Other Home Building
  Pellet Stoves
  Plumbing
  Wood Stoves
Tools
  Electirc Power Tools
  Gas Power Tools
  Generators
  Shop Tools
  Techniques Howto
Landscape
  Flowers Shrubs Garden
  Golf Course Maintenance
  Irrigation Systems
  Landscape Design
  Landscape Lighting
  Landscape Maintenance
  Lawn, Turf, and Grass
  Vegetable Gardening
Construction
  Caterpillar
  Komatsu
  Wheel Loaders
Current Events Health Happiness
  Current Events
  Dogs and other Pets
  Electronics And Computers
  Food
  Health
  Just For Fun Off Topic
  Movies Music Games
  Personal Finance Investme
  Sports Outdoors
Tractorpoint Site
  Member Photos
  Site Members
  Website Operations Howto


New As Posted | Active Subjects



Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 11-06-2005, 20:46 Post: 119030
HuckMeat

TP Contributor

Join Date: Jan 2004
Location: Colorado
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 121

3
Filter by User
 clearing conduit blockage

Well, winter is in the air, and I've just finished building my 'Murf tube' for the front of my FEL. (Thanks Murf!).

Now, I need to get power down my hill to run a small (300w) tank de-icer for the horses. When my excavator blasted for the water line, he left a shelf on the side of the trench for me to throw a conduit in (yet not have it at the same level or position as the water line in case we had to service either.).

In this trench, I put a 1" sch 40 grey PVC running from my garage down to where I need to put an exterior outlet. My plan was to pull a 12-2 with ground and put a single outlet down there, with the GFCI protection for it in the garage so the whole run is 'protected'. The run is about 270 feet.

Now, today I hooked up the shop vac, tied a small piece of baggie to a monofilimant line, and started to feed it up, as my electrican had done with the service feeder conduit (3"Wink yeah right.

The end at the house had been capped, but the end of the run that terminated outside was covered with duct tape, which had weathered and fallen off.

I'm convinced I have a partial blockage at around 150' or soo (guessing by how much string I was able to feed up). I tried clearing it with compressed air, etc. I finally glued on an elbow and started flooding the run with water from a garden hose (but our water pressure is low up on the hill). The water cleared out some gravel that appears to have gotten in during assembly.

Ideas for clearing it? I guess my alternative is going to be to try to measure the approximate length of the run until the string/bag hits the blockage and dig it up (which if I do, I'm going to put in an access/intermediate pull box like there should have been in the first place).






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-07-2005, 08:41 Post: 119049
Murf

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7041
 clearing conduit blockage

Huck, you're more than welcome.

We have this problem often, it's usually a fur-bearing rodent, or his house.

If the air didn't work, try hitting it with air from the opposite end, this will often break it up enough to allow it to move. You also need a LOT of air for it to do anything, a single big blast. Try getting as big a tank as possible at the end of the conduit, then release the entire tank at once. It will take a lot of air to even fill 150' of conduit, let alone create any pressure.

Also, you may try the biggest leaf blower you can lay your hands on, the big backpack style if possible.

If all else fails, go to the rental place and get a drain cleaning snake.

Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-07-2005, 09:24 Post: 119054
Chief



View my Photos

View my Photos  Pics
Join Date: Jul 2003
Location: Southwest MiddleTennessee
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 4280
 clearing conduit blockage

If you don't have a big tank that you can make a big vent of air with. Try corking up one end of the conduit and pressurizing the entire length of conduit (with a pressure not likely to rupture the conduit). Then pull the cork or stopper out of the other end of the conduit. The immediate out rush of air should have a similar effect of venting and large tank of air. (not as strong or as much volume but hopefully enough to jar things loose)






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-07-2005, 15:58 Post: 119076
harvey



View my Photos

View my Photos  Pics
Join Date: Sep 2000
Location: Moravia, NY
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1529
 clearing conduit blockage

If the vacum is sucking the baggie 150' the tube is already open. I'd try Ceran wrap and a very light thread and then pull a heavier twine thru. Maybe a bigger shop vac. Maybe a smaller ball of ceran wrap.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-07-2005, 21:33 Post: 119104
AnnBrush



View my Photos

View my Photos  Pics
Join Date: Mar 2004
Location: Troy OH
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 461
 clearing conduit blockage

If you can pull the baggie 150' one way you should be able to pull 120' the other. If you can't you may have more than one blockage (or it may be baggie friction preventing it form traveling). This may help identify where the precise location of the blockage is before you do anything drastic like dig things up. Another solution may be to take your 12-2 w/g bend the ends of the actual copper cable back (so it does not behave like a barb when pushed) as you push the wire into the conduit run it through a pan of motor oil. You will be suprised at how much you can push it along. You might be able to disloge the blockage.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-09-2005, 22:17 Post: 119163
steve4300

TP Contributor

Join Date: Dec 2004
Location: NH
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 71
 clearing conduit blockage

first go to your local electric supply house and get what we can a foam mouse. Usssally a couple of bucks. tie on a light wieght but strong string and put it in the end of the pipe. Now attach your vacumm to the other end making sure to get rid of as many air leaks as possible. Doing it this way way will suck out anything stuck in the pipe, including the ocasionall real mouse. do not try holding the string with your hand, it will give you one heck of a rope burn. also make sure the mouse is the right size for the pipe. I like to pull a 1/4 inch rope thruogh with the string and use that to pull the wire. Also you would be better off to pull 12/2 uf in the pipe instead of 12/2 nm wire






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-13-2005, 00:05 Post: 119284
HuckMeat

TP Contributor

Join Date: Jan 2004
Location: Colorado
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 121

3
Filter by User
 clearing conduit blockage

Thanks to everyone's help.

Well, I ended up digging it up. Even with my excavator neighbors big compressors, we just couldn't free the obstruction. I could vac my foam rubber 'mouse' quite a ways each way, but even with super light thread, I couldn't get more than about 1/2 way or so.

So I started digging it up. I dug and I dig, through my jigsaw puzzle boulder garden I call soil. I just couldn't find it, but my excavator was able to locate it with his fancy equipment. I was 2" away from the hole I dug. Smile


Where I dug it up, I've turned it up and added an outlet and pull box at that location, should make things easier to service, and really, an outlet would be handy there.

I have 3 thhn wires to pull, or a 12-2 romex. But based on feedback here, I'm thinking I'll go get some uf and pull; it's got the better/heavier jacket, can handle some moisture in the conduit, etc. Will I have any problems with heat dissipation (hence thhn) or should I not worry about it. I'm running 12, but have a 15A breaker (instead of a 20).

BTW, I was running 12 instead of 14 in case I decided I want to run a drill or something down there. What is the maximum voltage drop you could have when running something like a drill (inductive load) without damaging the tool? (I'll save the harbor freight tools for the far out field work just in case!).

Thanks,
John







Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-24-2005, 10:52 Post: 119780
Deereman



Join Date: Nov 2005
Location: Kansas
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 18
 clearing conduit blockage

Huck,

Hope this is'nt too late, but here's my 2 cents. Thhn wire would be my choise, it is rated for higher and lower temps than any romex, it has much better insulation, and is flexable. In addition, it will carry more current, and have less voltage drop than comperable size romex. As far as what voltage drop you will have depends on the load. Also, when pulling your wire in....pull an extra wire.....or another pull string.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-24-2005, 23:05 Post: 119803
loghouse
2005-11-24 00:00:00
Post: 119803
 clearing conduit blockage

I hope you will reconsider the size of wire you intend to run # 12 wire at 5 amps the max distance is appx. 210 feet with a 3% voltage drop...For 270 feet you need to use #8 wire, this will carry 10 amps with a 3% voltage drop






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
 11-25-2005, 01:24 Post: 119805
HuckMeat

TP Contributor

Join Date: Jan 2004
Location: Colorado
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 121

3
Filter by User
 clearing conduit blockage

I ended up running #12 THHN. I'm only pulling 300w in a resistive heater, so it will work fine even with a voltage drop (we're at less than 3A). Not really big enough for most tools, but it will run a light or the tank de-icer.

Thanks for all your help guys!
J






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us |
Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > Electric Forum

Thread 119030 Filter by Poster:
AnnBrush 1 | Chief 1 | Deereman 1 | harvey 1 | HuckMeat 3 | loghouse 1 | Murf 1 | steve4300 1 |

 (advanced search)

Picture of the Day
bobhope

Lawn, Turf, and Grass - The Plus and Minus of Ignoring Your Lawn
The Plus and Minus of Ignoring Your Lawn


Unanswered Questions

Drain Cock
Need more hydraulic flow for s
HINOMOTO HB 501
Belarus 420A - Problems bleed

Active Subjects

460 Long hyd leak
Key will not start engine
6x4 engine rebuild vsHarbor Fr
Things we say and what do they
The Plus and Minus of Ignoring
Looking to buy a New Pickup Tr
Need more hydraulic flow for s
Mitsubishi D 3250


Hot Topics

Tractor Category 1 2 3 Hitch s
Duerr hp 678 Chipper replaceme
Gator 620i gas in engine oil
KUBOTA Tractor Trouble Free Qu
Gator 6x4 Overheating problem
Duerr hp 678 Chipper Manual
Adjusting 7308 Pressure Relief
Long 460 hydraulic problem


Featured Suppliers

Mountain Creek Labradoodles
      MountainCreekLabradoodles.com





New Forums on Gun Sport Shooting and Hunting -- BarrelPoint.com  New Forums on Horses ManePoint.com
Talk Horses at ManePoint
Hunting + Gun Sports at BarrelPoint



Most Viewed

+ Hanging Ceiling Fan in Great room
+ pole barn sub panel
+ need a 110V winch
+ Breaker Trips After lIghts on 30 minutes
+ Back-up power
+ Underground Elec - direct-burial vs in conduit
+ trouble shooting
+ ground wireing
+ clearing conduit blockage
+ Underground Wiring

Most Discussion

+ need a 110V winch
+ Hanging Ceiling Fan in Great r
+ Back-up power
+ pole barn sub panel
+ Turn a freezer into a refriger
+ Underground Wiring
+ trouble shooting
+ wiring my new garage
+ Tapping in to Well Electric
+ Maytag Oven

Newest Topics

+ LED light bulb hum
+ Breaker Trips After lIghts on 30 minutes
+ Power 120v heat strip off one phase of 240v line
+ Maytag Oven
+ trouble shooting
+ Infrared space heaters
+ T-8 s or T-12 s
+ lighting
+ noalox compound
+ 220 pump shed
















Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines