What is the difference between seepage and leakage?
Does this two nouns and their verbs mean the same?
As far as I know, both mean a liquid unexpectedly flowing out of something (pipe, tube, hose, etc.)
Thanks for the help! :)

Question

Answer

Usually, to seep is to go slowly through a porous material.  (example - Blood seeped through the bandage.)
Usually, to leak is to go through a hole or a crack.  (example - Water leaked from the cracked pipe.)

New Oxford American Dictionary
seep | sip |
verb 
flow or leak slowly through porous material or small holes

leak | lik |
verb 
1 accidentally lose or admit contents, especially liquid or gas, through a hole or crack

Answer

Seepage is a very very very slow leakage / process.

Seepage - to leak over time