Like tar. Crack is an illegal dangerous substance. If you have found someone else's crack pipe, you can call the police from a pay-phone anonymously.
At -12C , the PVC cracks.
Check if there are any cracks forming, particularly at any connecting points. Also, look for signs of burnt paint or discoloration, and any holes or rust in the exhaust pipe or muffler.
A conduit is a pipe-like structure within a volcano that allows magma to travel from the magma chamber to the surface during an eruption. It is typically composed of a network of cracks and fractures within the volcano.
Check these pictures I found on a web-site of pipe snakes.
Most of the time it looks like a frog sitting on your pipe
Corn coop pipe and a button nose
Because the cold makes them slightly more brittle and the water in them freezes and in doing so it expands (needing more room) and this makes the pipes bulge and crack. You discover the problem as the ice melts!
It looks black and sticky
hey i ned something i can carry cigarettes in that isn't noticeable. i also would like to know something i can make a pipe out of that wont look like a pipe. any suggestions?
Rusted cast iron.
what kind of "pipe"? solid metal pipe, or flexible rubber "pipe"? number one cause is from aged rubber that dries out and cracks. loose hose clamps, wore a hole through it, cracked thermostat housing, etc.
Long thin pieces of wire, with brightly coloured fibres twisted into them.