My neighbor came over to help me level the trenches with rakes and picks, and then we laid down the domes.
All this for 5 - 10 gallons a day. I imagine that, in use, there will be a little puddle at the start of the dome, and the rest of the field will be bone dry.
I've never used the domes before, or ever done septic work of any kind before, but in hindsight, I would prefer not to use domes. Domes allow a smaller field, which is important if you are cramped for space, but I've got plenty of space. Old fashioned drain pipe is a lot cheaper and not as fussy about preparing the trench.
But, the sewer god said I must use the expensive dome, so that was that.
I found out later that I connected the pipes wrong -- they were supposed to connect to the top of the dome, not the bottom (so why do they put pipe holes at the bottom of the dome, duh ????). Putting the pipe in the top forces the dome to fill up and squirt out the slots in the side of the dome, which is how the dome is designed to work. Problem is, my 5 - 10 gallons per day will never, ever
fill up the dome. I spent some time arguing with the sewer god about that and another issue. As usual, the sewer god had the last word. If you want your septic system approved, you must appease the sewer gods.
In some parts of the country, there is a legitimate concern about contaminating the groundwater, or contaminating streams. Well, I am 100 yards from a seasonal creek (which is already badly polluted with cow poop). The water table is 1000 feet below me. Even if I dumped raw sewage directly onto my pasture, all it would do is make the grass grow better.
Idaho laws do not encourage or even allow water conservation. By law, a two bedroom home must be designed to use 200 gallons a day. All I can say is, that we live in a crazy world.
Idaho county does not require building permits, so compliance with septic code is somewhat voluntary. Plumbers are not supposed to hook up a well until you have an approved septic system, but I don't have a well, so I could have skipped the septic permit hassle and no one would have been the wiser. I only jumped through the legal hoops because I wanted to take the high road.
If I had to do it over again, I would take the low road.
I would bury a plastic 55 gallon drum in the ground, with holes in the side of the drum, and dump into that. Once a year I would need to clean the solids out of the drum, and put them in the compost pile. It would work fine, and it would make a lot more sense than this crazy system they forced me to use.