Retsam

I have an industrial tesla coil set up and working properly, but I can't seem to get the loot collection. I placed it in the nether next to a blaze spawner to collect blazes. I placed the loot collector so that the beam was shining into the tesla coil, and placed a blaze rod in the filter slot of the loot collector. But while the tesla coil has killed many blazes, I've yet to get a blaze rod from the loot collector.

I think it was the pipes being over capacity. I realized I had accidentally set those two tesseracts into a loop, so the pipes had way too many items in them. Once I got my pipes more under control, the explosions stopped. But I couldn't find any documentation about overloading a pipe causing explosions.

I'm working with pipes in Tekkit Lite; I have a sorting facility and a recycling center; yet I keep getting these mysterious explosions; they don't damage anything but they're noisy, annoying and damaging if I step too close. I've looked for information in the documentation, but haven't found anything. Any insight?