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Lightweight Off-Road Caravan | Advanced Camping Toilet Technology

Choose the toilet technology that best suits your needs

Kimberley kruiser lightweight off-road caravan al fresco awning walls

camping toilet systems off road caravans

3 CHOICES
CHEMICAL, VACUUM FLUSH OR COMPOSTING

  • Vacuum - Can be dumped in any bush toilet location or septic toilet as there are NO chemicals
  • Composting - Can be dumped almost anywhere
  • Chemical - Should be emptied at a station that accepts chemical treated waste

Comparison Table

  Kimberley kruiser lightweight off-road caravan one touch electric chemical toilet Kimberley kruiser lightweight off-road caravan composting camping toilet Kimberley kruiser lightweight off-road caravan vacuum camping toilet  
  One Touch Electric Toilet Composting Toilet Vacuum Toilet Maceration Toilet for Comparison
(not available on any Kimberley)
Capacity
19L
Liquids: 10L
Solids: 80 uses
25L
60L
Approx no. of uses with solids only
25-30
80
35-40
15
Design
Chemical based toilet
Composting of solids, collection of liquids.
Vacuum toilet & vacuum holding tank like aircraft.
Sewerage system that is pulped by macerator
Odors?
No with right chemicals
None for solids
Liquids need treatment
None
Possible as there is no vacuum
Biggest single feature
Lowest cost
No flush water so very economical and very environmentally friendly.
Uses less than 0.5L of water per flush and is odorless.
Tank under caravan
Serive & Maintenance Issues
None, just take out cassette and empty
Liquids bottle will need cleaning periodically
Diaphragm pump so can handle sanitary napkins and any foreign object.
Foreign objects get caught around macerator shaft, blockages are unpleasant to manage.
Dumping
Should be emptied at a station that accepts chemical treated waste
Can be dumped almost anywhere
Can be dumped in any bush toilet location or spetic toilet as there are NO chemicals
Can be dumped in any bush toilet location or septic toilet as there are NO chemicals
Kruiser Series 2
Std
Optional
Optional
Not Available

NEW Waterless Toilet “Automatic” function upgrade
This upgrade provides an automatic system that turns a set number of times a day no matter where it is.
It is powered from Kimberley’s 12V system and uses a minute amount of power.

Composting/separating toilet

You slide open the “safety” cover and use.

    • There is no water tank.
    • Has two tanks, one for solids and one for liquids.
    • You select which tank to use each time you start to use the toilet.
    • No water flush; liquids or solids fall into tank through gravity.
    • Typically 80 uses for solids, less for the liquids tank.
    • Couple should comfortably have 2-3 weeks or more before emptying.
  • Solids tank:
    • Add peat moss to it.
    • Use crank to churn contents after each use.
    • Moisture should be kept low.
    • Uses a continuously-running fan vented to outside air with a filter in the air vent.
    • Uses a heater to accelerate the time period to Safe mode.
    • Full composting into safe compost depends on temperature and time. At above 55 degrees (compost temperature not ambient temperature) this is only 1 hour; at  45 degrees this can take a week.
    • Need to wait 3 weeks or more (more is better) after last use before removing compost for garden use.
  • Liquids tank:
    • Tank configured for easy removal and transport for emptying.
    • Adding brown sugar to tank will reduce odors.

Composting/separating toilet advantages:

Composting/separating toilet disadvantages:

80 uses are typical for solids tank

Consumes 12v electric power for fan and heater; which although small is still required.

Better for the environment than discharging natural waste.

Capacity constrained to about 80 uses and then depending on temperature system, there has to be a delay before emptying

Easy to operate.

You have to empty the liquids more regularly than the solids.

Lowest cost to use

 

No flushing or pumping (operates via gravity).

 

Almost impossible to clog.

 

Few moving parts, and only one (vent) hose.

 

Lower weight and less space than a toilet-pump-tank setup.

 

Chemical toilet has one tank.

You slide open the “safety” cover and use.

    • There is no water tank, but there is water “feed’.
    • Liquids or solids fall into tank through gravity.
    • The “one touch” electric flush releases an amount of water into the storage container based on how long you hold the button down.
    • Typically 25-30 uses for solids, less if for liquids as well.
    • A couple should comfortably have 5 days before emptying.
  • Tank:
    • Is chemically treated
    • Is easy to remove and transport to dumping station for emptying

Chemical toilet advantages:

Chemical toilet disadvantages:

25-30 uses are typical for solids

Consumes 12v electric power for flush.

Easy to operate.

Consumes chemicals

Uses liquid chemicals or sachets so has a cost of use.

Capacity constrained to about 25-30 uses and then needs emptying

Can use “reclaimed water” from selected grey water tanks to “clean” the bowl of paper and residue.

If you use for liquids as well then number of uses reduces.

No active flushing or pumping required though (operates via gravity).

Can only be dumped where chemical treated waste is accepted

Almost impossible to clog.

 

Few moving parts, and no vent hose.

 

Lower weight and less space than a toilet-pump-tank setup.

 

Vacuum toilet is the latest technology as used on all aircraft.

You simply sit and use.

    • There is no water tank, but there is cleaning water “feed” line.
    • Liquids or solids are pulled through to tank by vacuum.
    • Pressing the foot pedal or button opens the “roll over” trapdoor at the bottom of the toilet and the vacuum sucks out the waste. The longer you hold, the more sucking action.
    • The water is used purely to “rinse” the bowl of paper and residue.
    • Based on a 25 litre tank, typically 35-40 uses for solids, less if for liquids as well.
    • A couple should comfortably have 7 days before emptying.
  • Tank:
    • Is kept in a vacuum
    • Is easy to dump from at a dumping station.
    • Water flush point is used to clean dumping hose at dump station
    • Transfer case can be used if not possible to get close to dump point

Vacuum toilet advantages:

Vacuum toilet disadvantages:

35-40 uses are typical for solids

Consumes 12v electric power for vacuum and pump out.

No odour at all, and therefore no vent hose.

Higher capital cost

Easy to operate.

Capacity constrained to about 35-40 uses and then needs emptying

No cost to operate (other than 12v power for vacuum pump)

If you use for liquids as well then number of uses reduces.

Environmentally preferred as waste has no chemicals

 

Can use “reclaimed water” from selected grey water tanks to “clean” the bowl of paper and residue.

 

No active flushing or pumping required

 

Almost impossible to clog.

 

Vacuum system and pump out system uses diaphragm pumps so that waste does not actually pass through a pump blade or shaft

 

Can be emptied anywhere that will accept waste as there are no harmful chemicals to the environment

 

Macerating toilet (designed for boats and sea water)

You slide open the cover and use.

    • There is a water tank. This can be seawater.
    • Uses a single “macerating “ blade to shred and pump waste
    • Uses a lot of water to flush; liquids or solids are pumped into tank.
    • For a 60 litre holding tank and 4 litres per flush, typically 15 uses for solids, less if with liquids.
    • Couple should comfortably have 3-4 days or more before emptying.
  • Macerating pump:
    • High end systems separate the macerating stainless steel blades from the actual pump. (less maintenance and trouble)
    • Lower end systems have a single macerator/pump blade.
  • Holding tank:
    • Because a lot of water is used for flushes, a large tank is needed.
    • Can be stored under caravan.
    • Is easy to dump from at a dumping station.
    • Water flush point is used to clean dumping hose at dump station
    • Transfer case can be used if not possible to get close to dump point
  • Water tank:
    • Because a lot of water is used per flush, larger water tank is needed.

Macerating toilet advantages:

Macerating toilet disadvantages:

Perfect for marine when plenty of water available (raw water can be used)

Prone to odour as no chemicals and no vacuum. Needs perfect seals.

No chemicals used

Waste travels through macerator so higher chance of blades/shaft blocking. Very unpleasant for maintenance.

 

Heaviest and least efficient system on land as a lot of water is needed for flushing; so large water tanks and holding tanks provide low capacity for no of uses.

 

Lower capacity for weight and size to any other system.

 

Consumes 12v electric power for pump.

Kimberley won’t offer a maceration system as the amount of water needed per flush is around 4litres for an odorless environment. This is too wasteful with resources and still leaves piping open to residue. The maintenance of the maceration system is unpleasant, as the waste MUST pass through the pump blades, which is a source of problems.

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