Is there an English teacher in the house? Have another look at what you wrote. I think what you were meaning to ask is: Are there problems with having the waste from the developing process going into a septic tank?. But when I first read your question I thought you seemed to be asking (from the way you worded and punctuated): Has anyone tried using the waste which would normally be going into a septic tank for developing?!!! Then I thought--wait a minute, I've heard of people using coffee grinds for developer, but this is going too far! He can't be meaning that!(posted 8065 days ago)