Those things have lots of pressure.Hmmm, A pressure washer might work. My neighbor has one of those. I will ask him to give it a try. It certainly wont hurt anything.
Why is it heavy?I picked up a Mast that someone has filled with expanding foam. It is very heavy. I am seeking ways to remove this material. Using a screwdriver and a long drill bit I have managed to remove about 1 foot from each end but now I can't reach any further down. I have looked at auger bits and a plumbing snake to try and get this stuff out. The plumbing snake didn't work. Auger bits are pretty expensive for anything longer. I also tried driving a smaller diameter galvanized pipe into the end to nibble some material out. This has worked a little bit.
Does anyone have any other ideas on getting this stuff out of the mast?
Can you tell what color the foam was originally?It's heavy because the expanding foam has soaked up a bunch of water. It's really nasty and smelly.
I'd grind one end of the galvanized pipe to sharpen it up and make a beveled circular cutting edge... angle grinder will work, bench grinder too if you have room for the pipe. Once you pull a "core sample" of foam out of the mast, it should be easier to remove the rest. You can buy longer drill bits too, but they'll only go so far... I reckon the galvanized pipe will do the trick, though it'll take some time to clear that cr@p outta there.
I knew Jimmy Hoffa was somewhere!Maybe it's not all foam... you might find Jimmy Hoffa in there!!!
pour gasoline into the mast tube and watch the foam dissolve
I would not recommend this.Could pour the gas in and light it. Should melt/burn the foam away.
Maybe it's not all foam... you might find Jimmy Hoffa in there!!!
The foam could've been dripped in. That would fill the mast completely.I am hoping that the foam is only at the top and bottom and not for the whole length of the mast. It seems that if you could get the foam to seal-off the top and bottom there would be no need to have foam all the way. The trapped air would certainly be lighter then foam.
There are lots of good suggestions posted, good luck!