You can cram foam rubber down occupied ducts. Yes we use capplugs or tape for vacant ones. If you don’t over do it, spray foam is OK. It takes a bell hangers bit and a bunch of digging to get it out if you ever have to get it out. Sometimes you can just trim off the end of the duct. But it does keep the crap out of the duct. Foam rubber will let muddy water in. I suppose just taping them up good would be just as good.
From: Mark Radabaugh Sent: Thursday, August 20, 2020 11:02 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Locating mud filled conduit Yuck to spray foam. That shit is a bitch to get back out when you need it. Plugs are available for unused ducts. Haven’t usually worried about ducts with cable in them. I think I would prefer some type of rubber boot rather than foam. Mark On Aug 20, 2020, at 12:58 PM, [email protected] wrote: Spray foam. From: Jason McKemie Sent: Thursday, August 20, 2020 10:46 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Locating mud filled conduit What do you use for foam in the ducts? On Wed, Aug 19, 2020 at 8:42 PM Chuck McCown <[email protected]> wrote: Hand holes fill with muddy water. You should foam them when you are done to prevent this. Sent from my iPhone On Aug 19, 2020, at 5:03 PM, Ken Hohhof <[email protected]> wrote: Is it normal for the duct to be full of mud? That seems ungood. I’m also assuming the fiber in that duct is carrying traffic and it would be very bad to break it and then not be able to replace it. From: AF <[email protected]> On Behalf Of Mark Radabaugh Sent: Wednesday, August 19, 2020 5:56 PM To: AnimalFarm Microwave Users Group <[email protected]> Subject: Re: [AFMUG] Locating mud filled conduit You still need a way to get air in the duct. Either this: https://www.gmptools.com/innerduct-pressurization-test-kit/ or this https://www.gmptools.com/line-blowing/ to attach to the compressor. Neither tool is very expensive (relative to the stupid price of most things fiber) Mark On Aug 19, 2020, at 6:50 PM, Mark Radabaugh <[email protected]> wrote: Something like this: https://www.gmptools.com/cable-overblowing-junction-box/ Put the real cable in the one side and block the other port or use it for water. Hum… water going backwards through the compressor isn’t a great idea. And pushing air back the water supply isn’t great. OK, fill it with water and block the other port. Add air and wait. Once you have half decent airflow change to water. Mark On Aug 19, 2020, at 6:06 PM, [email protected] wrote: You might get away with sealing it up really good where the fiber exits and then making a hole in the side of the duct small enough for the tip of an air blower. Not sure how much air you will get this way but easy to try. Use mastic and then tape to seal it. You might be able to couple a pressure washer to it too. -----Original Message----- From: [email protected] Sent: Wednesday, August 19, 2020 4:00 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Locating mud filled conduit I have a clamp thing that clamps over the duct and cable and seals it all up. It has an air port coming in from the side. And I use a 375 CFM 150 psi compressor. I am guessing you could slip a copper tube down the duct and tape the crap out of everything with black vinyl tape. Just use as much air as you can get. Be sure to inject as much water as you can inject first. -----Original Message----- From: Nate Burke Sent: Wednesday, August 19, 2020 3:32 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Locating mud filled conduit How do you seal it up with the existing fiber in there to be able to blow it? How much PSI do you use? Will a portable air compressor be enough? Other end of the conduit is in a building, so I can only blow the mud 1 way :) On 8/19/2020 4:30 PM, [email protected] wrote: Use compressed air to blow water through it. Once you get it flushed your fish tape might go. -----Original Message----- From: Nate Burke Sent: Wednesday, August 19, 2020 3:19 PM To: Animal Farm Subject: [AFMUG] Locating mud filled conduit Anybody have secrets for locating mud filled conduit? Trying to locate a 1" poly with a non-toneable fiber installed in it. No trace wire installed. Conduit is full of Mud, and at the bottom of a handhole that is also filled with Mud. Conduit goes from handhole under a parking lot, so digging to find it isn't an option either. We were not involved in the installation of this conduit, but it is now our problem. We got a flat steel fish tape pushed in just far enough to finish the current locate request, but it's not going any farther. At some point in the future I'm probably going to get a locate request further down the conduit path. What super-secret method do you guys that live and breath underground work have for dealing with this? -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com ------------------------------------------------------------------------------ -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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