Thanks and more questions.
Thanks, H2O_MAN.
Another thought that occurred to me is to put the softener in the first floor laundry room (above grade) in the garage. It's heated and protected but I'd have to add on to the room, taking up garage space. That would avoid the septic tank, but I'd have to bury a drain to the dry creek and get into some structural construction in the garage. Way more work than I had hoped for to soften our water.
H2O_MAN wrote:Softener backwash will not harm your septic system.
That's what I was concerned about. I've read several articles on studies that have been done but it seems the jury is still out (at least in the minds of some experts). I hear of people who do NOT recommend doing that but only because it sounds wrong to them. They haven't actually done it. Then I hear of people who have done it with no apparent problems so far. The only thing that would sway me from going this route is to hear from someone whose septic system had problems directly related to their softener discharge. It seems there are other risks going any other way.
H2O_MAN wrote:Make sure you install a metered softener...
Absolutely. That should reduce the amount of backwash going into the septic.
Here's another thing I noticed and do not understand. It appears that the brine tank overflow is essentially a hole with a hose attached. Water gets too high, it overflows out the hose. The other end of the hose will be directed to the floor drain. Depending on how I anchor it, it might actually be in contact with the floor drain. So what stops insects or bacteria from entering the overflow hose and making their way into the brine tank, the contents of which are pumped into the main tank to regen it? Correct me if I'm wrong about this, but it seems like germs, bacteria, etc. could find their way into the water supply as it passes through the system.
One more question while I have your eyes: What does a septic tank aerator do? When we bought this house, the tank was pumped and inspected and the non-working aerator was replaced. I know it stirs things up in the tank, but that seems counter-productive to getting things to settle to the bottom. What's its intended purpose?
Thanks,
Ray