From: dlzc1@cox.net   
      
   Dear Arlen G. Holder:   
      
   On Wednesday, September 4, 2019 at 12:20:35 PM UTC-7, Arlen G. Holder wrote:   
      
   "What does chlorine [bleach ]do to a septic system?"   
   ... it poisons the bacteria there, then turns into chloride ion to act like   
   salt.   
      
   > I'm curious how that can possibly be good for the   
   > septic system, given chlorine works best in the   
   > dark   
      
   ... no it lasts longest when it is kept dark, because visible light can drive   
   its decay process back into salt.  It works with or without light.   
      
   > and given that even a small amount goes pretty far.   
      
   Agreed.  It works by concentration, and time.  She can use less, if she leaves   
   it in the toilet longer.   
      
   > I guess the good thing is that it only goes so far,   
   > where the biomass load may overwhelm the chlorine.   
      
   The biomass load is unimportant.  You are expecting the bacteria to work   
   anaerobically to turn Total Nitrogen into nitrates, and reduce the solids to   
   water soluble components.   
      
   > Does anyone have real world data that tells us how   
   > much effect, say, a gallon of supermarket chlorine   
   > (12% by volume, I think, or maybe by weight, or   
   > maybe 6%, I don't remember) does to a typical   
   > septic system?   
      
   Do you think any such will convince your wife, one way or the other?  Talk to   
   her about concentration times time, the cost of excess bleach, and the fact   
   that she is salting your land (at minimum) with EVERY drop.   
      
   https://www.clorox.com/how-to/laundry-basics/bleach-101/bleach-101/ ... it   
   made from salt, and returns to salt, irrespective of anything else you do.   
      
   David A. Smith   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)