In this post I aim to collate useful cassette toilet options information for NZ based van builders to help then meet the fixed toilet requirement in the new 2023 Self-contained Motor Vehicles Legislation Act.
Information on the 2023 changes to the Freedom Camping Act can be found at https://www.mbie.govt.nz/dmsdocument/26796-local-government-guidance-pdf#:~:text=The%20Act%20enables%20local%20authorities,apply%20to%20that%20particular%20area.
The purpose of this document is to provide guidance on the key changes implemented by the Self-contained Motor Vehicles Legislation Act 2023 (the Act) which will impact local authorities.
Key for NZ Campervan owners/builders is the new Self Contained requirement for a fixed toilet.
Edit 12/07/2024 – The details of exactly what this means can now be found in this document https://www.pgdb.co.nz/media/cqubmqa3/vehicle-inspection-guidance-v10.pdf
is permanently fixed to the vehicle with the base of the toilet rigidly mounted in position and
does not require removal in order to empty human waste;Consult the linked document for a full list of requirements.
NB There is a requirement for the cassette or tank to be vented to the outside. This requirement is currently under review
Fixed toilet options:
CTS4110 – swivel, ceramic inlay, 12v electric flush, pressure supply water
Dimensions are D530mm H672mm W382mm. As only the toilet seat swivels, these dimensions do not significantly change when rotated 90 degrees.
Dometic Saneo CS – swivel, ceramic inlay, 12v electric flush, pressure supply water
D602mm H680mm W377mm. As per diagram below, depth is 549mm with bowl at 90 degrees (assume width increases by 50mm also)
Thetford C223-CS – swivel, plastic bowl, 12v electric flush, pressure supply water
H534 x W414 x D580 mm. As per diagram below, depth is 556mm with bowl at 90 degrees, width increases to 427mm
Thetford C224-CW – swivel, plastic bowl, hand pump flush, on board flush tank
H731 x W414 x D580 mm. Same platform and swivel measurements as C223 above, but taller due to onboard flush tank.
Thetford C263 – swivel, ceramic inlay, 12v electric flush, pressure supply water
H750 x W417 x D600mm. As per diagram below, depth is 541mm with bowl at 90 degrees, width increases to 464mm
Thetford C402 – Bench, plastic bowl, 12v electric flush, on board flush tank
H512 x W670 x D400 mm. Bench type, comes in left and right hand models – choose the side that the cassette will be removed from.
CHH 3924 – non-swivel, hand pump flush, on board flush tank
SCNZ have stock of the below pictured toilets coming in October. These have onboard flush water tanks and piston pump flush so do not require pressurised water supply or 12V. Price will be approx $700. Measurements are D530xW395xH480mm.
NB – A swivel option is planned to be available at some point in the future but it wont be the near future.
Ian Ganderton 
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