When are you planning on doing this test? (in MA it's called Title V[5]). I would pump the tank and double dose the tank with Rid-X or the like for a couple of weeks. You don't want to CLEAN it!!! You want the enzymes to "work" eating all the sh*t. You know if you have a bad system if the leech area is wet or smells, if it does, your better off to plan to fix it because you will be the new neighbor.
