Great idea Jim! I think I'm going to do the same thing this weekend with my d-box. Someone else I know did something like that also. They told me they pour Septic Scrub into their distribution box once a year. They also told me the best time to pour it into the box is in the morning before anyone gets in the shower. If no one takes showers in the morning then you just have to run a garden hose into you d-box for a few minuts. Good luck with your system.