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composting toilets in australia Common Questions How does it work? More information

Common Questions

Does it smell?

    No. The ventilation fan works in exactly the same way as an exhaust fan in your toilet, except that air flows downward through the toilet pedestal. Odours never enter the toilet room.

    Also, because the breakdown process uses aerobic {with air} decomposition, the main by-products are carbon dioxide and water vapour. This contrasts dramatically with anaerobic systems {septic tanks} which produce foul smelling gases like hydrogen sulphide and methane.

Is it easy to clean?

    Very easy. Our ceramic toilets have a larger base than the standard flush toilets, which eliminates most soiling. Also, because there is air constantly flowing down the toilet, any soiling will usually flake off and fall into the compost chamber. A damp brush with biodegradable detergent or Nature Flush enzymes should be used to clean the bowl occasionally.

Does it look like a normal toilet?

    Yes. We designed the pedestal to look like a standard white flush toilet. Your visitors probably won't notice any difference until they lift the lid. If you'd like something a little different, you can opt for a custom coloured pedestal.

Can I see the compost pile?

    Because the chamber and the waste chute are black, it's difficult to see waste levels in natural light. You should occasionally shine a torch down to check the level. This isn't as unpleasant as it sounds, because the contents have started breaking down from the first time you used the toilet.

What else can I put down the toilet?

    Because it is a very efficient composting process you can put almost anything organic down the toilet and it will break down. Non-compostable materials {e.g. plastics} will stay in the chamber until you empty it. Ladies' sanitary pads and nappies or diapers will decompose very slowly and use up chamber space ~ they should be disposed of by other means. NOTE: We do not recommend placing food scraps or other household refuse in the toilet as this can attract insects and interfere with the speedy decomposition of waste.

Can a Nature-Loo be installed in a slab house?

    Yes. To install the Classic model, you can use one of three approaches:

  1. Excavate beneath the toilet room so you have space for your composting chamber (remember to excavate out beyond the floor too, so you can drag the chamber out from under the house). You'll need 1metre of space beneath the toilet room floor.

  2. Elevate your toilet room, and let the chamber sit directly on the slab. 

  3. Split the difference ~ excavate a bit, and elevate a bit. This approach keeps the steps up to the toilet room from being so high, and keeps the excavated area at a minimum depth. You might also consider the old cellar door arrangement outside the house, to access the chamber.

    If you need a toilet in a shed, weekender or workshop with a slab-floor, the Nature-Loo Compact is ideal ~ it simply sits directly on a slab floor, requiring no through-floor fittings.

Can I have an upstairs toilet?

    Yes. As many as you want, wherever you want them, providing the chamber can be located directly below.

What if the occupancy of the house changes?

    No problem. Unlike the continuous systems that are on the market, the Nature-Loo can grow to accommodate any size load. If your family grows, or you sell to a larger family, Nature-Loo can easily cope with increased loads simply with the purchase of another inexpensive composting chamber. No other composting toilet currently offers this feature.

I am building my house and living in a shed/caravan. Can I use Nature-Loo now, then install it in the house when it's finished?

    Yes. Because of the Nature-Loo's compact size and easy installation, you can move it wherever and whenever you want. Because it's so cheap, people often use a Nature-Loo 'Compact' for the shed and purchase a Nature-Loo 'Classic' for the finished home.

Does it use much power?

    Hardly any. The exhaust fan uses less than 3 watts of electricity ~ as little as a 60 watt light bulb used for one hour per day. For people on solar or other alternate power systems, Nature-Loo is a good option.

I don't have mains power, how do I keep the fan running?

If you are planning to use solar power on your property, you can use that same solar system to power your fan.  If your solar system will be 24 volt, let us know and we can supply 24v fans (our standard fan is 12v).

If you need to power just the fan, you can do that with either of a couple of solar panels we have available. The 5 watt panel will keep the fan running under most daylight conditions, but keep in mind that it won't keep it running at night.  The 11 watt panel will keep a battery topped up so you can power your fan from the battery.  It's the smallest size that will keep the fan running during 5 straight days of rain.  

How long do the fans last?

    The fans are high quality brushless ball-bearing type, designed for continuous use. On average they will last for 2-3 years. A new fan is easily installed and costs $45.00 plus postage.

How many people is the Nature-Loo designed for?

    The 'Classic'

    The standard Classic toilet, with two composting chambers, is designed to service up to 6 people on a continuous basis. Capacity can be expanded by the provision of one or more additional composting chambers. For a weekender or holiday residence, one Nature-Loo Classic will easily handle large numbers of people with infrequent use.

    The 'Compact'

    The Compact is designed for temporary or intermittent use, although it can handle 2 people on a permanent basis. It's mainly used in weekenders, holiday huts, walking tracks, beach huts etc.

I Live in a very cold climate; will the compost continue to work?

The composting process will go dormant during extreme cold, but will kick in again when the temperature warms up.  You may want to insulate your chamber against the cold by wrapping wall or roof insulation around it, and setting it on a sheet of styrofoam to keep it off of the cold ground.

If it's really cold, you could use our wrap-around heater tape.  It plugs into 240 volt power and will keep the chamber quite warm. It's a good idea to wrap insulation around the heater tape, so the surrounding cold isn't still trying to work against the heater. 

  How long does it take to compost?

The Classic chamber needs a minimum of 4 months once you've changed chambers; the compact chamber needs a minimum of 2 months. 

There's no need to empty it until it's time to change chambers again. Just let it continue composting until you need to rotate chambers.

If the number of people using the toilet means that there would not be sufficient time for a full chamber to compost before needing to change chambers again, they can add another chamber into the rotation to give each one enough time.

  Can you put a Compact in a boat/motorhome/plane

We have had quite a few customers who have installed compacts in trailers and buses.  They tend to run the liquid drain hose to a holding tank, and empty it at appropriate places.  We've also had people talk about putting them in boats and planes, but we think there are complications with each (eg. heeling) that would need consideration.    

We're planning to use the cabin only occasionally; do I have to do anything to the toilet if the use is to be infrequent?

No.  You have enough micro-organisms in your gut as part of your natural flora to start the composting process off again, even if it's been a long time since you last used the toilet.  

 

 

 

How does it work


    Nature-Loo works on exactly the same principle as your kitchen compost bin, only faster. The waste is collected in a small chamber directly beneath the toilet pedestal. A low powered 12 volt electric fan continually circulates air through the chamber, evaporating liquids, speeding the composting process and eliminating odours.

    All of the Nature-Loo models are batch-type composting toilets that come standard with two composting chambers. Fill one, put it aside to continue composting, and put the second chamber into use. When it's time to change chambers again, the contents of the first chamber should be well and truly composted. You then remove the compost, put it on your garden or bury it, and re-use the chamber. 

    The unique, modular Nature-Loo system means that capacity is virtually unlimitedIf usage increases, you can use additional composting chambers and rotate them a little more often.

    How often will you need to rotate chambers? A family of four will usually fill the Nature-Loo CLASSIC chamber in 6 to 9 months. A couple can expect to fill the Nature-Loo COMPACT chamber in 2 to 3 months. 

    Why the difference? Let's take a look... 

    (Click on each picture to enlarge it.)

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    how.ht2.gif (10097 bytes)

    So you can see, they use the same type of ventilation system, and same type of drainage to take excess liquids away from the solids. The big difference is the size. The Classic chamber is 800mm diameter and 850mm high, with a solids capacity of 150 litres. The Compact chamber is 460mm diameter and 520mm high, with a usable solids capacity of 40 litres.

    Did you notice the liquid drain hose in the pictures above? For more info on where the excess liquid goes once it drains through the hose, click on the picture below and see how simple it is to set up an Australian Standard absorption trench:

    wpe1E.gif (16191 bytes) 

Looking after your Loo.

    Keeping your Nature-Loo clean and fresh is incredibly simple. Every so often, just as with a conventional flush toilet, you might need to give it a scrub with a toilet brush. When you do, use a biodegradable detergent. Better still, you could use Nature-Flush enzymes.

    The Nature-Loo system is completely free of chemicals.

Installation.

    Even a complete novice can install a Nature-loo in about half a day.
    All you need is clearance of around one metre beneath your toilet room for our larger Classic model or directly on a slab or floor for the Compact model.

    You can place an upstairs unit almost anywhere you want, completely independent of your downstairs unit.

 

 

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