Cleaning a 27mm hose?

ear3

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Jul 24, 2014
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Seems I'm having multiple hose issues these days.  Now I have a question about my 27mm hose.  I've suspected for a little while that there might be some material stuck inside that didn't make it all the way to the CT, maybe like a thick piece of paper or cardboard that somehow has gotten stuck/lodged in the ribs.  The reason I think so is because there is a faint whistle in the airflow sound, and when I've been using the hose for flush trimming with the 1010 I've had several blockages that I had to clean out.  Maybe I'm imagining it, but just in case, is there a good way to clean out the inside of the hose?  Again, if there is something, it's not a total blockage, since sawdust is still getting through to the CT (I have three full CT26 bags to show for it over the last two weeks).
 
I've stuck a broom stick in mine and let it work its way through.
 
  It's easy if you have two hoses that connect. I used the short 50mm hose that came with the boom arm. I tied one end to an object that wouldn't pass through and left enough rope to make it about a foot into the second hose. I tied the free end to a small rag ball and sucked it up. I then tied a larger tight fitting rag and pulled it back through. It turned out there was no obstruction but it was entertaining.
-Charlie
 
I cut off 12" of a 1" diameter aluminum bar, and then radiused the ends. I place it in the hose and just walk it down the inside. It has enough weight so that it will knock loose anything that's inside. In my case, it's usually aluminum or steel shavings from the lathe.
 
Chimney cleaning brush pushed in backwards for me. You can thread them together to make them any length and you can knock anything out real easily.
 
My 27mm hose also whistles, but it's just the hose not being 100% airtight with the coupler. When it is whistling, I can push the hose part into the coupler and stop it. The only time it really bothers me is when I'm using the cleaning set to vacuum the floor, since it's otherwise drowned out by the tool.
 
I usually tie a rag to a string and suck that into the vacuum (usually through a conduit).
Once you have a string through a hose, you can tie anything to the string. A beer bottle brush seems about right. Or a coat hanger bend to a subtle helix like a 7th grade science project DNA model.
 
All useful techniques - I'm marking the page for when I need to unblock my arteries  [wink]
 
Edward, how about running through a piece of Romex  (12 wire would work I bet) , or a  fish tape?  Any sparkies on the jobsite yet?
 
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