NatSol waterless toilet range

NatSol composting and waterless toilets are ideally suited to a wide range of applications from garden offices and studios to campsites, busy allotments and public parks. We supply them for remote islands, nature reserves, forestry sites, churches and other sites without mains services.

NatSol manufactures several different types and we will assist you in deciding on the right model for your site.

The Full Access Composter

This is the toilet on which we built our reputation. It is perfect for allotment sites and many other sites with similar levels of use.

Roll over the image to view features:-

composting toilets schematic


  • Easy clean, anti-fouling, urine diverting stainless steel pedestal.
  • Passive ventilation stack and wind cowl for odour free operation.
  • Generous twin chambers to allow good in-situ decomposition.
  • Full wheelchair accessibility (review as pdf).
  • Antiseptic hand-gel dispensers.
  • Ceramic waterless urinal with no consumables.
  • Compost chamber forming floor and foundations for building.

How does it work?

NatSol Urine diverting compost toilet pedestalThe compost chamber usually extends 800mm below ground. It is divided into two sections used alternately on an annual cycle so that when compost is removed it is at least one year old and nicely decomposed. Urine is diverted and sent to a soakaway – rather than relying on evaporation, a method better suited to warmer climates. Click here for more details which help explain why we are the UK market leaders.

Building options

The Full Access dry toilet is available with a standard NatSol timber or metal building. We can also provide bespoke buildings or all the components to integrate into your own design. Please select a building type on the right of the page for more information.

If you have a steeply sloping site it may be more appropriate to build what we call an Above Ground toilet where the vaults are constructed by you from masonry to a design we agree with you. We then supply other components. In most respects the toilet works in a similar way.


The Compact Toilet

For low use applications we developed the Compact. This uses the same high quality stainless steel urine diverting pedestal as the Full Access but has a receptacle for solids which are removed and composted separately from the toilet. It’s ideal for a summerhouse or garden studio too remote from the house to connect to mains sewage and it doesn’t have a freezing risk. As with all our toilets ventilation could be fan driven if necessary. We do not usually supply buildings for this toilet but at least one customer purchased our timber Full Access building and set it up for a Compact in a situation where the Full Access vaults couldn’t be installed. More information on the Compact here.


Zero Discharge Public Toilet

For high use public sites we recently developed a new waterless toilet system which was first installed at Richmond Park in London in 2014 and won the Eco Toilets category of the Loo of the Year awards in 2016. This has zero discharge of urine to ground and is infrequently emptied by tanker. It could also be very useful on low use sites if a urine discharge isn’t permitted, or on sites where a very low maintenance profile is essential. This toilet doesn’t compost the solid wastes and vehicle access for maintenance will be required.



For price guidance go to our prices page