Septic and its alternatives: Permitted wastewater for off-grid homes · Alt Ordo Systems Guide: cover
Septic and its alternatives: Permitted wastewater for off-grid homes · Alt Ordo Systems Guide: inside pages
Alt Ordo

Septic and its alternatives: Permitted wastewater for off-grid homes · Alt Ordo Systems Guide

Sale price$15.00

A septic system is a small sewage works buried in your yard. A watertight tank holds the house's wastewater long enough for solids to settle and float apart, and the clearer liquid runs out to a drainfield, where the soil does the real cleaning. When the soil is too shallow, too tight or too wet, engineered versions (a mound, an aerobic unit, a drip field) do the same job at a higher price. And on some land, in some counties, a dry toilet plus a greywater system is the permitted alternative. This guide helps you find out which one your land and your county allow, before you spend money.

This guide helps you read your soil before you buy, know which wastewater system your county will permit on it, size a septic tank and drainfield with real numbers, budget honestly, and keep the system working for decades, or choose a permitted dry path instead.

What's inside. 19 pages in 9 chapters (At a glance, Where it works, How it works, Size it, Parts and cost, Build it, Run it, Rules and permits, How it connects), then the sources and a notes page. 7 numbered figures drawn for this guide. You also get a worked example with a fill-in worksheet, 10 numbered steps, a year-round calendar, and a troubleshooting table.

Three builds, costed line by line (typical US prices, October 2026):

  • Bare-bones: ≈ $1,300–$2,200
  • Standard: ≈ $7,700–$11,600 + install
  • Comfortable: ≈ $6,300–$13,900 + install

Sourced and fact-checked. Facts and figures are cited to the 31 sources listed at the back, and the whole guide was fact-checked before release. General guidance, not engineering advice: your county and a qualified pro have the last word on your site.

Pairs with other Alt Ordo Systems Guides: Finding off-grid land; Composting toilets; Wells and hand pumps; Off-grid solar. For your county's permits and rules, see our county and state guides.

Instant PDF download. After checkout you get a download link by email. Letter-size pages, made to read on screen or print at home.

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