Tekkit pipes getting clogged

I have a Tekkit server running and I just started using a quarry. Twice now I have logged in and it has been SUPER laggy. I have discovered that this is because the pipes are getting clogged. After minutes of destroying my transport pipes, one I destroyed popped out this monster!

What could be causing this? Is there a known bug with pipes I haven't heard about? Maybe could it be because it is going into the earth and being surrounded on all sides? I do also have some powered gold pipes in this system, the rest being cobblestone

No matter what tekkit your using they have Pneumatic tubes (spellings a little incorrect) Theses are lag free and deliver the items into the nearest inventory. If the inventory is full it will try and find another one. If there is no other route it will just keep bouncing in the pipe. This stops overflow and allows you to log out without causing to much lag.

Also if your using Tekkit lite there's applied energetics which have no lag at all. The movement delay is instant and its more powerful. i would google tutorials if you want to find more about that out.