Nature Loo™ Troubleshooting Guide

Foul odours

A Nature Loo™ should keep the bathroom odour-free. First, confirm the fan is running continuously and the vent is clear of cobwebs or obstructions. Establish a strong inward draft at the bowl, then level the surface and top-dress lightly with dry bulking to restore a porous cap. Avoid running a separate bathroom extractor that could reverse-draw from the chute.

Chamber filling faster than expected

Rapid fill usually signals a dosing or airflow issue. Stick to the correct carbon dose (regular, not excessive), check the fan/vent path, and return to normal use patterns. If your occupancy has increased, plan more frequent change-outs or keep an extra chamber on hand.

Excess moisture or pooling

Check the outlet and drain/soakage line have clear fall and are unobstructed; flush if necessary and give the system time to rebalance. Restore porosity at the surface with dry bulking and gentle mixing. Persistent pooling typically means a drainage or airflow constraint—address those first.

Slow decomposition

Composting depends on oxygen, carbon, and temperature. Keep the fan on 24/7, maintain a breathable top layer, and where practical let maturing chambers sit warm and protected. If the bathroom is very cold, a slightly warmer room helps the system draw less frigid make-up air.

Fan noise or weak draw

Clean the fan, confirm correct orientation (extracting up the vent), and check wiring/voltage. Replace the fan if it remains noisy or underpowered.

Insects

Restore balance at the surface. Keep a fresh carbon cap, ensure steady airflow, and—if required—use an approved, long-acting insect powder per directions. Verify vent screens are intact and moisture is not pooling.

WCTNZ® | Waterless Composting Toilets NZ Limited | Copyright 2026 ©

alt option 

Foul odours

A Nature Loo™ should keep the bathroom odour-free. First, confirm the fan runs continuously and the vent path is clear (no cobwebs, nests, or kinks). Check for a gentle inward draft at the bowl (simple tissue test). Re-seal any loose vent joints, then level the surface and top-dress lightly with dry bulking to restore a breathable cap. Avoid using a separate bathroom extractor—it can reverse-draw from the chute and pull odour into the room.

Chamber filling faster than expected

Rapid fill usually points to carbon dosing or airflow. Use the correct dose—scoop per poop—rather than over-adding bulking (which only consumes volume). Verify the fan/vent are unobstructed and resume normal routines. If occupancy has increased, plan more frequent change-outs or keep an extra chamber on hand.

Excess moisture or pooling

Confirm the outlet and drain/soakage line have clear fall and are unobstructed; flush if needed and allow a few days for the system to rebalance. Restore porosity by raking the top and adding a light sprinkle of dry bulking, then gently mix the upper layer. Persistent pooling almost always indicates a drainage or airflow constraint—resolve those first.

Slow decomposition

Composting depends on oxygen, carbon balance, and temperature. Keep the fan on 24/7, maintain a flat, porous surface with regular carbon dosing, and, where practical, let maturing chambers sit warm and protected. In very cold bathrooms, keeping the room a little warmer reduces frigid make-up air and helps the process along.

Fan noise or weak draw

Clean the fan and housing, confirm correct orientation (extracting up the vent), and check connections/voltage. If noise or weak draw persists after cleaning, replace the fan with the specified model.

Insects

Insects usually signal a surface imbalance. Keep a fresh carbon cover, ensure steady airflow, and treat per label with an approved long-acting insect powder if needed. Verify vent screens are intact and that moisture isn’t pooling at the surface; adjust with light dry bulking and gentle mixing to restore a breathable top layer.

WCTNZ® | Waterless Composting Toilets NZ Limited | Copyright 2026 ©