>>2243238>>2243251My septic system was $1,850, installed.
1,000 gallon 3 chamber tank and 300 feet of drain field (4x 75 foot runs). Plus another $50 in pipes and fittings to get from the bathroom to the contractor's run. And then whatever you want to spend on the actual toilet.
Permit was $75. That included the inspector digging holes to find "good" dirt for the drain lines and designating where components go for the contractor.
Having a system with a pump is somewhat rare. The vast majority of systems are gravity fed.
Pump systems are when people put their home in a low area that possibly floods or the surrounding area is something like clay that doesn't absorb water and their only choice is to pump uphill to an area with more sand.
Septic is very simple. Rednecks have illegal diy systems hooked up to their hunting trailers buried in the woods.
Dig hole for 50 gallon drum.
Drill a couple hundred holes in 20'-50' of pvc pipe.
Attach pipe near top of drum.
Bury system.