Content for id "text" Goes Here
Toilet Units & Models
Unit Descriptions

Dean Petrich
2131 E. Middle Drive
Freeland, WA 98249-9516
(360) 730-7992 / (206) 324-5055
Find the products that interest you most, read about them, then call me.

 True Composters:

Small Composters:

EcoJohn SR

Waterless Urinals

Waste Water:
Graywater Systems
BRAC System
AIRR drainfield alternative

General description:

     The Carousel, the Clivus Multrum, the CTS,  and the Phoenix are the ultimate waterless toilet systems.  They consume all wet organics: toilet wastes, all kitchen scraps and compost, floor sweepings, occassional leaves and garden wastes, cooking grease and oil, and whatever else decomposes.  There is no odor; in fact, the system acts as a bathroom ventilator so that the room itself never smells, and what comes out the roof vent is nothing more than carbon dioxide and water.  If you were to climb up on the roof of a house with a conventional water-flush anaerobic toilet you would smell sulfur, ammonia, methane, and other unpleasant odors.  If you recycle your glass, metal, paper and plastics; put all your wet organics in the compost tank; burn all your dry organics in an efficient airtight woodstove; and avoid plastic, styrofoam and any non-recyclablematerials by leaving all excess packaging at the store where you bought it as a socialstatement, then you have literally no garbage.  You can bottle the liquid from the holding tank and sell it as concentrated liquid plant fertilizer, since the nitrites in the urine convert to nitrates which plants need.  If you need to retrieve anything valuable that fallsdown the toilet, nothing is lost.  These toilets are silent, require minimal maintenance, have few or no moving parts, have no pipes to keep from freezing, and are actuallypersonally satisfying to use.  Composting toilets avoid pollution; manage pathologicalwastes; create a valuable fertilizer; save water, energy and money; are legal; and eradicate the flush toilet.


Phoenix residential models

Click here for large close-up photos
of PF-200 (public facility) and R-200 (residential)

     The PHOENIX is the most recent break-through in composting toilets.  It comes in two sizes; one measures 39"W x 61"L x 92"H, the shorter is 73"H.  Each requires abasement area of 3' wide by 10' long.  It efficiently uses 450 gallons of compost volume and 40 gallons of liquid treatment. 

The advantages of the Phoenix are many. 

Phoenix Diagram


CTS Diagram CTS tanks

    All CTS Composting Toilets are hand built to order. Each tank has baffle walls and air channels. Each composting toilet includes the CTS Easy Drain and a Heavy Duty Aluminum Access door. CTS Composting Toilets come with a complete venting system including a vent fan, vent pipe, roof flashing, storm collar, and vent cap. You can build your own Tank Support Cradle from our plans, or we can build the cradle for you. All systems are shipped with detailed Installation Instructions and Owner's Manual. Free sample floor plans are available with each system.
    The CTS (Composting Toilet System), manufactured in Newport, Washington, is of high quality construction and design.    The CTS is a fiberglass tank and comes in two sections.  The installed dimensions are roughly nine feet long, six feet high, and four feet wide.  All accessories are included: toilet, chutes, kitchen assembly, wind turbine fan, and liquid removal system.  Fire protection and solar venting kits are available.  CTS also makes a public facility comfort station unit for high useage.  There are currently severalhundred CTS units in use.   Up to four toilets can be installed on one tank.  prices

    Why the CTS Outback? There are several sites around America that have particular needs that the CTS Outback addresses. Sites may require low profile composting toilets due to high water tables, or high wind loads, or simply in keeping with the idea of not wanting to interrupt the natural landscape with a building. Rustic Outback experiences are enhanced by providing clean, environmentally correct composting toilets. Some sites require that the composting toilet be moved seasonally, the CTS Outback is small enough to move. Some sites require that during the off-season you "Leave No Trace" so the toilet and vent system can be removed and the low profile, partially buried, tank is practically out of sight. The Outback can be surrounded with natural privacy screens with very low impact. The CTS Outback is small enough to be dismantled and packed into the back country without requiring machinery. The CTS Outback provides a clean, environmentally safe alternative to the old pit latrine.
    The Outback is handmade using fiberglass & plywood construction able to support the weight of two users (up to 600 lbs). The Outback includes interior baffle walls and interior air channels to provide adequate oxygen to the aerobic bacterium. Multiple colors are available. Finish is impregnated with sand for user traction and safety. All piano hinges are Stainless Steel. Toilets are made of cross-linked polyethylene and are virtually indestructible. Toilets are available in Handicapped sizes. Plastic seat and lids are air tight. Venting is 8" PVC pipe, removable, with 12V DC vent Fan. 12V power for the fan is provided by solar panels. 24 Hour venting is available. Tank is fitted with 1.5" Easy Drain system, optional.

The Outback features:
Low profile, only 48" high
Removable toilets
Removable solar venting
Two (2) ways to access for maintenance
Strong tank design supports user's weight
No building required



Clivus Multrum
Clivus Multrum 

CLIVUS MULTRUM has been in the forefront for fighting legal battles and making headway in counties around the country to attain approval as an appropriate, efficient,safe, reliable and necessary alternative.  Originating in Stockholm and now also made in Massachusettes, Clivus Multrum has earned the reputation for being the grandfather androle model of all composting toilets.  Over the years, the design has transformed severaltimes, and there are currently several molded plastic models available. prices   site link


Nature's Head

No Smell
Separate urine from solids
Good for 80 uses per cycle
Lowest price composting toilet on the market.
Practical for boats, RV's, cabins, remote sites, extra bathrooms

PRICE: $850



     The CAROUSEL consists of a toilet which sits above a large capacity decay container underneath the floor, thus separating the composting waste mass from the part of the system in use.  The liquid is also separated, and a proper balance of carbon and nitrogen is maintained.  An electric blower draws in air to carry evaporated liquid, gases and odour from the container; if electricity is unavailable, convection created by heat from the process is sufficient ventilation.  Micro-organisms decompose waste and transform it into humus, which is removed through the access door approximately twice each year.  The small Carousel container has a capacity of 2 persons, at 110 person-days per chamber; the buffer volume is 160 liters and 42 gallons of liquid; the container weighs 110 pounds, and measures 52" in dimameter and stands 30" high.  The large container has the same buffer volume and 5-6 person capacity, but at 600 person-days per chamber; it weighs 165 pounds and stands 54" tall.  The Carousel is made in the USA, fashioned after the Vera, which is made in Norway.  prices


Worldwide Sanitation Problems

Many countries are chronically short of water, which makes the use of water bourne sanitation an unrealistic option.
The capital cost required for water bourne sanitation is prohibitive in most of the cases.
It has conclusively been proven that nitrate loaded effluent from pit latrines is directly responsible for widespread contamination of valuable groundwater resources.
The regular operating and maintenance costs of sanitation systems such as bucket latrines, septic tanks, chemical and waterbourne toilets are very high.

The ECOSAN Waterless Toilet Solution


Included in the toilet cost is the following:
Complete toilet
Ventilation pipes
Waterless urinal
Wind turbine (extractor fan )
Waste bag
Not included:
Electric fan as a substitue for the wind turbine fan.
Shipping, installation, & tax if applicable.

Length 2450 mm, Width 630 mm, Height 750 mm above floor level
Toilet bowl 1120 mm - Height of catchment drum at back
Material LDPE - Low Density Poly-Ethylene; Weight 90 Kg's



General Description:
       Dry or dehydration toilets differ from true composters in that they are not large enough for a complete ecosystem to develop and digest the mass.  To enhance and speed up the decomposition process, they rely on supplemental heat, air and stirring.  Most of the liquid evaporates and the solids aerobically dry up and organically decompose.  The environmentally-clean soil residue is periodically raked or dumped into a collecting tray and emptied onto an out-door compost pile where it should stay for at least six months before being applied to the garden.  These toilets need to be emptied frequently, have a smaller use capacity, and use electricity.




     The SUN-MAR has N.S.F. approval and comes in several models.  The Tropic has a capacity of 2-4 people part-time and is not for full-time use; the Non-Electric is for 4-6 people part-time and 1-3 full-time; the X.L. can handle 5-7 part-time and 2-4 full-time; and the WCM (with low flush toilet) is capable of 6-8 people part-time and 3-5 in residential use.
Although the Tropic has no Bio-Drum, it is equipped with unique shaftmixers and comes with the same fan, heating element and 1-1/2" vent system used in the WCM and X.L.models.  It has a security drain which can be connected if necessary to provide
insurgance against extreme overloading or prolonged power failure.
The N.E. (non-electric) model uses no electricity, no water, no septic system and no chemicals.  Although the tremendous aeration and mixing action of the Bio-Drum enableoperation without power, the capacity is limited to 1-3 people in year-round use.  With the help of a 4" vent pipe and the heat from the compost, a chimney effect is created and draws air and odors out.  Due to the small evaporation capacity, the N.E. has a similar drain to the WCM and needs to be connected to a small 1'x1' drain pit.The X.L.'s Bio-Drum and electrical system gives it the composting speed and evaporating capacity to handle 5-7 people in cottage use or 2-4 people year-round.  For short periods the X.L. will safely handle double these numbers.  Maintenance is easy: merely add peatmoss and turn the handle every 3rd day for continuous use, or once before leaving if used on weekends only.  The X.L.'s security drain can be connected to provide insuranceagainst extreme overloads or long power failures.
The WCM (Water Closet Multrum) incorporates both a low flush toilet and a composting unit.  The low flush toilet is installed in the bathroom and is connected by a gravity-fed 3" ABS pipe to the fiberglass and stainless steel WCM composting unit under the floor. The use of water allows a higher capacity use of 6-8 people in cottage use and 3-5 people in residential use; for a short period, these numbers can be doubled.  The WCM is the only flush toilet system that does not require a septic field or holding tank.  However, at times when the WCM's electric system can't evaporate all the liquid, a small amount will drip out through the 3/4" drain pipe (8' supplied with the unit).  This is to be led to a small 1'x1' cesspool. The compact low-flush toilet uses less than 1 pint per flush, ismounted on a standard 3" floor fitting and has 3/8" i.d. water connection which requires a
minimum of water pressure.  As an option, the WCM is also available in a non-electric version.

site link
To discuss specifics,


INCINERATING TOILETS burn up the waste. 
The Incinolet, out of Texas, uses electricity, and is the sole distributor. 
The Storburn and the Use'n Burn use either propane or natural gas. Click here for details on the Storburn.

The EcoJohn uses propane. Click here for EcoJohn.

The advantages of incinerating toilets are that the waste is reduced to ash, which is easy to dispose.  Space requirements for both the toilets and the residue are minimal.  These units solve the problems in cold environments of freezing pipes and of temperatures too low to maintain organisms in a compost environment.

The disadvantages of incinerating toilets are that they require power or fuel -- non-renewable resources.  They pollute the air, and anyone downwind during a burn will not be pleased.  The pots can corrode from the acidic urine, and if electrical units break down, there is no functional toilet until repaired; there are few available incinerating toilet repair people around.
  To discuss specifics, contact

Storburn Large Use'n Burnprices


LOW-WATER-USE TOILETS:  If you already have a water flush toilet but want to reduce your consumption, consider converting to a low-water flush toilet.  In contrast to the standard five-gallon flush, these toilets use as little as one cup up to as much as 1.6 gallon per flush, depending on the system you choose:  Econo-flush, Crane, Fowler, Ifo, Mansfield, Micophor, Nepon, Peerless, SeaLand, and more.
    The SeaLand models are dependable, readily available, and use only one pint per flush.




So what do we do with our waste water?


     If you need more infomation, require consultation, would like to see a functioning unit, or want more literature, please contact me on either my Seattle line at (206) 324-5055, or on my Whidbey line at (360) 730-7992.  Your decision to obtain and use any of these alternative systems is a necessary step toward the future direction of the entire concept of "waste disposal."  You are welcome to make an appointment to visit my own personal Clivus Multrum, CTS, electric car, organic garden, solar collectors, compact flourescentlights, windmill, and water purifiers, in my home built of recycled materials.  I am a long-term, dependable, committed proponent for these and other appropriatetechnological solutions to a more sensible, aware, and vitally improved lifestyle.  Join me and let's improve the world one more way.

Pick up your phone and call me today:
(206) 324-5055 / (360) 730-7992

Dean Petrich

Toilet Site Links
Please return to this site to order at discount prices

Biolet  (
Sun-Mar (
Infiltrator (
Phoenix (
CTS Composting Toilet Systems (
Danfo AB (
Restop:  ( emergency human waste disposal
Toiletology 101:  ( everything about toilet repair
Waterless Urinals (
Master Plumbers (
Travel John:  ( disposable urinal bags which solidify urine
Miracle Seat It’s a vacuum toilet seat that COMPLETELY removes all odors BEFORE they escape from the toilet bowl.
Controllable Flush upgrade your existing standard toilet to a Dual Mode Controllable Flush handle that can save you up to 67% of the water and money you are currently flushing down the toilet.
The Flush Toilet  Thomas Crapper didn't invent the flush toilet.  He had several patents in plumbing, but none toilet related.
Here is a link to an about article:
And another one that claims a Sir John Harrington did:
Oasis Graywater Systems
GFX www.gfxtechnology.comgreywater heat recovery system
Form Cell drainfield alternative
AIRR (SPEC Industries)

CalTech's Toilet Design for 3rd-world countries:

More Info:
what, how and why?
models and styles
waste water
Related environmental products
Return to top

Return to home page