100% on minimal garbage disposal use, and also proper installation of septic. A friend had a mess from both heavy garbage disposal use, not great field lines or a problem along that way. They had a pretty big expense to fix the field lines/septic which probably wasn’t put in great to start – but the garbage disposal heavy use and careless on what went down it was what set it all off.
My next-door neighbor had an issue because when their septic was pumped out, the guy forgot to turn the valve for the flow to the field lines (and that might have been why they needed their septic pumped out). They are on lower lying area, and the builder (3 owners ago) didn’t have the proper drainage from around the house, so moisture/water was gathering under the house (in the crawl space) and rotted out stuff/mold. Yuck. That was repaired by prior owner.
From what I know from others (and places like Consumer Reports) the aging of dishwasher, other appliances.
We don’t have ‘hard water’ - lots of minerals. We just replaced our 80-gallon water heater (20 years old - a fair amount of sediment in it) - if you flush them yearly, you can perhaps get more years out of them. We noticed it was going out, based on hot water supply. Our other water heater was replaced some years ago, and should be good for a while.
If one has hard water, one needs to run dishwasher and washing machine cleaning cycle once a month. Purchase the products for that. My daughter needs to do that in San Antonio - their rent house doesn’t have a water softener system but I guess the water is not bad for use but hard on appliances.
This is our first (and probably only home) to have septic. Our builder put it in right and ‘went big’ on what the septic tank and system could handle. Having the separate line for the laundry room also keeps the septic system from getting alkaline which kills off the bacterial breakdown of waste.
We put in ‘good stuff’ - mid to high end on appliances. Rheem water heater through Home Depot - the 80 gallon is ‘commercial’ - I guess a lot of homes don’t put in the super large Jacuzzi to need that. Maybe some have two water heaters due to areas of the home, or have one be instant hot water (small) located near heavy or important use (master bath for example).
We also live in the south (N AL) - if we were further north, I would be feeding RidX more over winter months. You don’t want the bacteria in the septic tank to be dormant, and the cold could possibly cause that to happen.