How to deal with it is a common problem and has been since since the first human laid their first log. Rural folks pretty much go one of three routes. A Septic tank, A holding tank or a Lagoon. Many areas are imposing restrictions forcing the use of aerated septic systems or holding tanks. Fortunately there are still some areas, mine included that allow the use of lagoons, which IMO are the best option both environmentally and financially. I am currently digging a new lagoon and back filling the old lagoon with the dirt from the new lagoon. Over the years I have seen some very well built lagoons and some very poorly built lagoons. A well built lagoon has no odor, breaks down the solid matter fast and naturally makes clean water, well not clean water in the sense that you would want to drink a glass of it But clean in that any solids not broken down are trapped in the bottom and that the water that runs out is free of bad bacteria and pathogens. The trick is to create a aerobic environment in the lagoon, with lots of natural filtration. I build my lagoons based on how much volume of waste we will produce. A good rule of thumb is the bigger the better. I make ours 30' wide by 80' long and 5' deep in the center with sloping sides. It takes me around 3 days with my bucket tractor to get the hole dug and another day of trenching and laying the 4" pipe from the house to the lagoon. Our soil structure does not require a liner to be used, other sub soils in other areas may require a line to protect leeching into the ground water. Once the hole is dug and the pipe laid, I use a trash pump and 2" hose to pump water from one of the stock ponds or wells to fill the hole with water. The volume of water to the volume of black water going into the lagoon is important or you will create a anaerobic system that will be stagnate and stink to high heaven (Bigger is better ) I base my volume on 25 gallons of fresh water to 1 gallon of turd water going in. I put 4 12 cold pumps in the center spaced evenly lenghtwise with out hose 8" above the water. These pumps operate off of the solar panels and battery bank and run 24/7 from last freeze to first freeze and aerate the water keeping a high oxygen content in the water. Cattails and other aquatic plants are your friend. They send out thick root mats and absorb the nutrients from the broken down waste. They also attract other things like frogs and snakes and turtles. Eventually a family of muskrats will move in. Water snails will appear, water bugs and crawdads.......... All playing a part in the breaking down of the waste and cleaning up your mess The old lagoon was a bit small but worked and was in a location not easy to run a pipe from the new cabin to without crossing a couple of water and electric lines. So it just made sense to build a new and bigger lagoon. I am a fanatic about only urine and feces with the water to carry it going down the toilet and to the lagoon. If anyone wants to see me come unhinged........ Let me see a wad of toilet paper or a tampon floating in the lagoon Those things belong in the burn pile! And that waste basket with the lid in the bathroom ain't there for show Grey water goes to a whole different place it just runs out to a shallow depression in the woods. The water from the sinks and showers just runs out there and the trees love it. Harsh cleaning chemicals are only used in buckets or tubs and those get dumped on the gravel drive way and do a fine job of keeping the driveway weeds killed down. Nothing toxic or hazardous about grey water if you don't send every damn toxic thing you can find down the drain. The great thing about lagoons if you can have one, is they are a totally passive system that require little maint. and no chemical treatment if built right and nature allowed to do the work. No honey dippers to suck out tanks. You can add a Y and a ball valve for when the pipe gets clogged and use a high pressure hose in the Y to blow the blockage through, just close the ball valve so it does not back up into the house and let the hose rip. I know folks using lagoon that were built 150 years ago that have been maintained and are as functional today as when those old timers first built them. The best thing is if you have or have access to a bucket tractor, track hoe, back hoe or bobcat you build a fully functional, clean non stinky lagoon for a fraction of the cost of a septic tank either aerated or a leech field model. Lagoons obviously are not a option for urban or suburban areas and many jurisdictions have made them illegal, so it would be wise to check with you County health department environmental services before building one and using it. I have heard of some very large fines being dropped on folks for putting one into use in a County where they are prohibited.