Photograph of a waterless composting toilet Buyer's Guide to Waterless Toilets, No-water toilets & Low Water Usage or Water Conserving Toilets

  • TOILETS, WATERLESS ALTERNATIVES - CONTENTS: Choices of alternative toilets and toilet designs where water usage, electrical power, or onsite septic systems are limited or unavailable
  • POST a QUESTION or READ FAQs about water conserving toilet choices: no-water toilets, waterless toilets, low water-consuming toilets and low-flush toilets
InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

This article provides information about waterless & low water septic systems, waterless toilets, chemical toilets, incinerating toilets, holding tanks, disinfection septic systems, & greywater systems.

This document also has links to septic design engineers, advanced septic system products and books. Guide to choices among chemical toilets, composting toilets, low water toilets, no-water toilets, electric toilets, & incinerating toilets as components of alternative septic systems - Toilet product sources & product comparisons

Green links show where you are. © Copyright 2017, All Rights Reserved.

Buyers' Guide to Waterless Toilets, No-water toilets, Low Water Toilets & Greywater Toilet Flush Systems

Water saving toilet: toilet tank-sink combination (C) Daniel FriedmanWaterless toilets, low-water toilets, holding tanks, and graywater systems are alternative designs for sites where a septic system can't be installed or where water is in limited supply or not available at all.

Photo at left: this water-reusing toilet shown above combines a sink for hand-washing with the toilet flush tank. Water used to wash one's hands is directly recycled into the toilet flush tank for the next toilet use. This Stilfor [citation needed] toilet uses 1.6 gallons of recycled water per flush.

A similar toilet lid conversion accessory from SinkPositive [image] can be used to convert any tank type toilet lid into a hand-washing sink.

[Click to enlarge any image]

Examples of advanced septic designs which may need to employ waterless or low-water usage toilets include aerobic septic systems, chemical, composting, incinerating & waterless toilets, evaporation-transpiration (ET) septic systems, septic media filters, greywater systems, holding tank septic systems, mound septics, raised bed septics, pressure dosing septic systems, sand bed filters, peat beds, constructed wetlands, and septic disinfection systems.

Alternative onsite wastewater disposal systems can reduce the soil absorption area or leach field size requirement substantially and can in fact in some cases reduce the needed area to zero. For problem sites where space or soil conditions make it difficult to install a conventional leach field these designs are very important alternatives.

Alternative Septic System Designs for wet sites, steep sites, rocky sites, limited space, and other difficult site conditions. Consultants in this field can be listed at our alternative septic designers page at no charge by contacting me. Also see SEPTIC SYSTEM INSPECT DIAGNOSE REPAIR - home.

Massachusetts Title 5 Licensed Septic System Inspector, & New York State H.I. License # 16000005303 (inception to 2008). Technical reviewers welcomed and are listed at Reviewers.

Each of the links below presents an InspectAPedia article providing more in-depth information about each of these alternative toilet designs and wastewater disposal methods.

Water saving toilet: toilet tank-sink combination (C) Daniel Friedman

Product submissions are welcome Contact Us. to list your product or service here - if you are a manufacturer of waterless toilets, no-water toilets, low-water consuming toilets or other alternative wastewater treatment system equipment your product may be listed at no fee. Website content critique, additions, and suggestions are also invited. No conflicts of interest: We have no financial business relationship nor any other economic relationship with any product or service discussed at this website.

General Categories of Onsite Residential Wastewater Treatment Systems

Because various texts provide so many different views of categorizing wastewater systems, we have made this simple list which groups wastewater treatment systems into a few major categories:

(1) Conventional septic tank and drainfields using native soils for effluent absorption and treatment

(2) Raised bed and septic mound systems which take a similar approach but have to bring in fill to treat effluent

(3) Septic filter systems: various types of advanced material media filtration systems (sand beds, filter beds, synthetic textile filters, foam media filters including above-ground self-contained systems)

(4) AEROBIC SEPTIC SYSTEMS which insert additional oxygen into and agitate sewage in the primary treatment tank

(5) Waterless and low-water and greywater-separation systems, which may not really treat effluent, may not discharge anything into the environment, but which form another set of alternative designs where water supply or land use restrictions mean that a conventional system is not permitted.

Adding to the complexity of what to call various septic systems, there are also categories of methods of septic effluent dispersal such as gravity-fed, trickle-down, pressure dispersal, sprinkler dispersal, and intermittent effluent dosing systems which use gravity or pressure.

In case this is not enough, there are also various levels of degree of treatment of septic effluent achieved by different versions of these systems. So you may read about more than one type of pressure-dosing filter bed system which look a lot alike but which achieve different degrees of effluent treatment.

Keeping these general categories in mind when reviewing various off-the-shelf packaged systems or wastewater treatment systems with interesting but non-descriptive names (like the "magic bullet treatment box") will help you to understand the general approach which has been taken. Further reading will be needed to understand the installation cost, maintenance cost, and level of management required of each type of septic system.


Continue reading at CAMPING & EMERGENCY USE TOILETS or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.








Suggested citation for this web page

ALTERNATIVE & WATERLESS TOILETS at - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia


Frequently Asked Questions (FAQs)

Click to Show or Hide FAQs

Ask a Question or Search InspectApedia

Use the "Click to Show or Hide FAQs" link just above to see recently-posted questions, comments, replies, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.

Search the InspectApedia website

Comment Box is loading comments...

Technical Reviewers & References

Click to Show or Hide Citations & References

Publisher's Google+ Page by Daniel Friedman