Centrex 3000 Non-Electric Waterless Ultra High Capacity Central Composting Toilet System in Bone

Yes, the Sun-Mar Centrex 3000 NE is designed to be used without a septic tank. It is a composting toilet system that processes waste into usable compost.

This composting toilet system is designed for both residential and seasonal/vacation use. It can be installed in a camper parked on a lot. However, for year-round use, especially in freezing temperatures, the unit needs to be in a location where the ambient temperature remains at or above 55°F. If the system will not be used during the winter months, it can be left in an uninsulated area. The cold will not damage the system, but decomposition will not occur until temperatures rise again. For frequent winter use, insulation is necessary to maintain bacterial activity for proper composting.

Yes, you will still need a septic system or other approved wastewater treatment system for gray water from sources like washing machines and kitchen sinks. Composting toilets only process human waste. They do not handle wastewater from other household sources.

The electronic is for a fan that is supposed to reduce odor.

The Centrex 3000 series composting systems have a unique emptying process. They feature a 'collection chamber' at the end of the unit that automatically collects finished compost. To empty it, you simply remove the top of the collection chamber and remove the compost. This typically needs to be done every 3-4 months for residential use and about once a year for vacation/weekend use.

Hello, Thank you for your question. All Sun-Mar composting toilets, including the Centrex 3000 NE, are Certified by NSF (National Sanitation Foundation) to Standard 41. This is an Internationally recognized certification and Sun-Mar composting toilets are the only approved systems with this certification for both residential and seasonal/vacation applications. In North America, the NSF Certification to Standard 41 typically eliminates the need for permits, however in some regions (state and counties) a permit application is still required. We recommend contacting your local health department and/or building code regulator to request that information. Most states have a list of approved composting toilets which would include NSF Certified to Standard 41 at the forefront. Sun-Mar composting toilets are accepted and installed all over North America, so you should not have any issue moving forward. Please do not hesitate to contact Sun-Mar should you have any additional questions: Toll Free at 1-888-341-0782 Ext. 232. Thank you.

Hello, Thank you for your question. The Centrex 3000 series composting systems are slightly more unique than all our other Sun-Mar composting toilets when it comes to emptying them out. On the other composting toilets and systems you would typically reverse rotate the drum in order to get material from the Bio-Drum to a Finishing drawer that sits at the very bottom. However, with respect to the Centrex 3000 systems (both electric and non-electric) this step is eliminated from the equation. Instead, this system includes a 'collection chamber' at the very end of the unit which automatically collects finished compost as it moves along from one end to the other. Therefore, all you would need to do with this system is pull the top off the collection chamber and then gauge whether you need to empty it out or perhaps wait a bit longer for more material to accumulate and then empty it out. Roughly speaking your timeline to empty out will be 3-4 months for residential/continuous use and about once a year for weekend/vacation use. In either case, the material will be finished and ready for you to use as a fertilizer for things such as grass, trees, flowers and/or plants. Please do not hesitate to contact Sun-Mar should you have any additional questions: Toll Free at 1-888-341-0782 Ext. 232. Thank you.