Okay, the ground breaking for my new house will begin next week. I'm planning a rather large aquarium installation (300 gal +). My house will require a spetic system and a small sand mound. I just read some information regarding water softeners and their potential effects on septic systems. The article mentioned the negative effect that saline water can have on the anerobic bacteria that breakdown waste in a septic system. It said that watersoftners that are regularly maintained would have little to no effect on the bacteria. What I need to know is if a 100 gallon water change 1x/month is going to wreck my poop cleaner? :lol: Anyone experienced this? I'm in south-central PA if it matters. . . Thanks!