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The complete guide to emptying a composting toilet

The complete guide to emptying a composting toilet

One of the questions we get asked all the time when talking to customers about composting toilets is “so, how do you actually empty one of these things?”. And like many of our answers in the articles on this blog, this answer is going to be ‘it depends’.

 

How you empty a composting toilet will depend on the model you have

If you’ve taken the time to browse through our website, you will see there are many different makes and models of composting toilets available and the way you empty your composting toilet will ultimately depend on the model you choose. As a general rule there are guidelines you should follow when emptying any type of composting toilet, so before we get into the specifics of emptying a composting toilet, let’s go over the general guidelines you should follow.

General guidelines to emptying a composting toilet

  • Always wear a dust mask (P2) when dealing with composting toilet compost
  • Always wear latex, rubber or protective gloves when dealing with composting toilet compost
  • Make sure to wash hands and clothes thoroughly after emptying
  • Compost can be heavy so use a trolley or get assistance if needed
  • If burying compost, make sure it’s at least buried 10cm deep
  • Don’t use compost from composting toilets on food plants or vegetables (fruit and nut trees are acceptable)

Now that we’ve got the general safety guidelines out of the way, let’s look at how to empty a composting toilet.

How to empty a self-contained composting toilet

 

Tiny home, caravan and mobile home models

If you have a model designed for a smaller home, motorhome, boat or caravan usually these types of models will have what’s called a compostable bag. This is a small bag inside the composting toilet that can be disposed of into a dedicated onsite garden composting bin but if you don’t have a garden composting bin available either at the general waste facility or general waste bins as it is legal. Please take care to wrap the waste well so the bag doesn’t break. To achieve this, you could double bag the waste.

Models for homes, holiday homes and sheds

These types of toilets come in two different types – batch composting and continuous composting. If you are using a batch process composting toilet, emptying it is a simple case of opening the top of the composting toilet, removing the seat panel and taking out the container and replacing it with a new one. Usually, we recommend conditioning the composting (leaving it in the container (chamber) with the lid on out in an open sunny area) for at least 2 weeks before emptying it into a dedicated onsite composting bin for cold composting maturation of about one year after which you can use it in your gardens.

If you have a continuous cycle composting toilet there is typically a tray in the bottom of the composting toilet that you can pull out to empty. Compost made from human waste loses much of its bulk so you will only need to empty the tray every couple of months depending on the usage of the toilet. When you have pulled the tray out of the composting toilet, you will be left with a topsoil equivalent product (humus) and it can be used in your general green waste compost bin, buried (with 10cm of topsoil) either in your gardens or in the ground and as this Humus has had around 2 months of composting it can be used in a worm farm compost bin.
How to empty a split system composting toilet

 

Depending on the style and size of your split system composting toilet there are a few different ways to empty the toilet. For example, it’s easy to empty our Clivus Multrum range. It’s a case of opening up the hatch that leads to the composting chamber and using a shovel and wheelbarrow to get your compost out of the system.

Take a look at the video below to get a better idea of how they’re emptied.

 

With split systems like the Sun-Mar Centrex range, there is a finishing tray at the bottom of the system that holds completed compost that’s separate from the fresh waste in the Bio-drum™. It’s a simple case of emptying the tray into a container or wheelbarrow or taking the tray directly to the area you’re going to be using your compost.

It’s really very easy to empty a composting toilet

So as you can probably tell, emptying a composting toilet isn’t that big a deal at all really. It’s quite easy and you’re only having to deal with a compost product that has a texture and makeup very similar to topsoil.
If you’ve shovelled dirt in your garden, you can empty a composting toilet!

 

Article Source: Ecoflo Wastewater Management

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