Field Notes — Documented Installs
The work speaks
before we do.
Every install documented with engineering callouts, CFM ratings, and permit outcomes. Drag the handle — see the difference.
Single-Unit Dry Cabin
Ozark foothills, 340 sq ft
County said no. Perc test failed three times. The owner-builder had framed the whole cabin before realizing the ridge was solid limestone six inches down. No septic. No problem. One Sun-Mar Excel NE, a 4″ vent stack through the shed dormer, and a 12 CFM inline fan — total job time: 11 hours.
Garage-to-ADU
Suburban lot, no sewer stub
The permit office wanted a full sewer lateral — $18,000 and 6 weeks of street work. The homeowner called us instead. NSF/ANSI 41-certified unit, documented per local health code, permit pulled in 4 days. Tenant moved in on schedule.
THOW Pre-Inspection
24 ft trailer, county inspection Tuesday
Tuesday morning inspection. They called Friday afternoon. RV cassette was leaking, code officer had already flagged it. We sourced a Nature's Head unit overnight, installed Saturday, documented the full vent path Sunday. Inspector signed off at 9:14 AM.
Technical Range
Simplest cabin to
full glamping bathhouse.
The range of work we document publicly is intentional — so you can see exactly where your project sits, and know we've done harder.

Single-Unit Cabin Retrofit
One composting unit, one vent stack, one day. The baseline install — perfected across 40+ Ozark cabins.

Full ADU / Tiny House
Two-person occupancy, permit documentation package, health code sign-off. We pull the permit.

Homestead Multi-Bath
Multiple units, shared vent manifold, drum composter integration for the finishing pile. Full system design.

Glamping Bathhouse
Multi-stall commercial installation, 50+ guest-nights per week, NSF commercial certification, quarterly service contract.
Permits · Codes · Certifications
We pull the permit.
You move in on schedule.
Every install comes with a documentation package: unit spec sheet, vent path diagram, CFM calculation, and the applicable code section flagged for your inspector.
Non-liquid saturated treatment works
Composting toilet systems
Uniform plumbing code exception
Prefab composting toilet systems
States with active installs
140+
installs permitted
4 days
avg permit timeline
Not sure if your county will approve? We'll read the regs, call the office, and give you a straight answer — in 15 minutes.
Schedule — Site Walk
Let's walk the site
before we quote it.
15 minutes on the phone or a short video call — we'll tell you exactly what unit fits, what the permit path looks like, and what it'll cost.


