What do you use for foam in the ducts?

On Wed, Aug 19, 2020 at 8:42 PM Chuck McCown <ch...@wbmfg.com> 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 <af...@kwisp.com> 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 <af-boun...@af.afmug.com> *On Behalf Of *Mark Radabaugh
> *Sent:* Wednesday, August 19, 2020 5:56 PM
> *To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
> *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 <m...@amplex.net> 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, ch...@wbmfg.com 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: ch...@wbmfg.com
> 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, ch...@wbmfg.com 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?
>
>
>
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