For ‘Green Sticker’ Self Containment Certification the composting toilet needs to have a minimum urine storage of 1 litre per day, per person storage for three days. This can be in the main liquids storage bottle or secondary secured liquids storage bottle.

Additional specialty urine bottles for the OGO Origin, OGO Nomad or Nature’s Head Composting Toilets can be purchased from us, but any additional liquid storage bottles could be used. An additional storage bottle can be simply a plastic liquids container from a hardware store. Spare containers are typically 5 litre, 10 litre or 20 litre capacity and can be stored securely in your van, caravan or tow car.

When nearly full, the urine in the toilet bottle is simply decanted into the spare container using a funnel, and then the bottle is then placed back into the toilet to be used again. Later, both containers are emptied at the next opportunity.

To prevent any smell developing in the urine bottle, after rinsing the bottle simply add 10 ml of household bleach (Janola) to the bottle. For spare containers use the ratio of 20 ml Janola for each 10 litres of capacity.

Flushing the urine portion of the bowl with 1/4 cup of clean water after each use will also help to keep the toilet hygienic and prevent staining or smell from any residual urine. You can also give it a spray after use with a 50/50 mixture of white vinegar and water to sanitise it.

Urine Storage Requirement Tables

OGO Nomad Composting Toilet

OGO Origin Composting Toilet

Nature’s Head Composting Toilet

Green Sticker Self Containment Certification for Campervans and Caravans

Preparing a Coco Coir Briquette – the ideal Composting Medium for our Composting Toilets

The Daltons Coco Coir Briquette is our preferred choice for a composting medium for the OGO Origin, OGO Nomad and Nature’s Head Composting Toilets. It is available from most home improvement stores and garden centres across New Zealand for around $5-$6 a 9L Briquette.

When hydrated with only one and a half litres of water the block will swell up in size to nearly fill a 9 litre bucket. This produces the correct quantity of composting medium to fill your toilet base to the required level – just slightly below the pivot points for the agitator – and with the correct moistness.

During use more water can be slowly added if the pile dries out too much through infrequent use.

1.   Obtain a large plastic container with lid, such as a 20 litre chilly bin or large plastic bag.

2.   Remove the briquette from the wrapper and stab the outside with a screwdriver to aid the water penetration.  (Fig.1) Place the briquette into the bin (or a large plastic bag with no holes.

3.   Pour about half of the water over one side, then turn the briquette over and pour half of the water over the other side.

4.   Break up the briquette to expose the dry portions. (Fig 2) and then if necessary add a small amount of water, stir the coir and then cover with a lid and leave for several hours to obtain an even saturation.

6.   The coir will now nearly fill a 9 litre bucket. Make sure it’s ‘fluffed up’ and break up any chunky bits.

7.   Empty into your Nature’s Head toilet base. One briquette when hydrated should fill it to just under the agitator when levelled out.

Note: Don’t use the 4 litres of water as indicated on the wrapper. This is for garden use. You only need 1.5 litres!

Preparing a Coco Coir Briquette for a Composting Toilet