Click here for a full size view of the Envirolet® Waterless
Self-Contained 3" Vent Kit Installation (similar to #6 below).


1. Ventilator ("V" Rain Cap)
2. Insulated 3" Pipe Outside
3. Envirolet® Multi-System 10 (120v Electric model) - No Drain is required but is optionally available
4. Roof Kit
5. Insulated Pipe In Attic
6. 3" White Pipe
7. Envirolet™ DC 12 (12v battery model) or Envirolet™ Basic Plus (Non-Electric model) with Envirolet™ Turbo Fan to compensate for 45° bend in Vent
8. Filter Drain To Small Container
9. Maximum 45° Angle (A vertical vent is recommended for Non-Electric Systems.)
10. 4" Flex Vent Duct
11. Wind Turbine
12. Waterless Toilet
13. Envirolet® Waterless Remote Systems install directly below floor in basement or on ground.
14. 8" Flex Duct Drain
15. 2 Feet Above The Roofline
16. Low Water Toilet
17. Install Up To 3 Low Water Toilets Per Composting System
18. 3" Flex Drain Duct
19. 4" Rigid Pipe
20. Envirolet® Low Water Remote Systems install below floor or outside and offset away from toilet.
21. Covered structure required for outside installation.
22. Proper Drain Site
23. Proper Drain Site

Envirolet® Waterless Self-Contained and Waterless Remote Systems if fitted with a special Filter Drain must gravity connect to either a small plastic container, approved leaching pit or other acceptable drain site. All Self-Contained 12VDC Battery and Non-Electric Systems and Waterless Remote 12v Battery and Non-Electric Systems include a special 2-Stage Pre-Sediment Filter Drain. The 2-Stage Pre-Sediment Filter Drain is optional for 120VAC Waterless Systems.

Envirolet® Low Water Remote Systems are installed with a special Filter Drain. Though most liquid is evaporated by the Automatic 6-Way Aeration™ System, periodically a minimal amount of excess liquid may drain from the System, and the drain must gravity connect to an approved leaching pit, septic tank or holding tank. Check local regulations regarding draining when installing your System.