Greywater...what is it & where can you use it?

Greywater is an overarching term that describes water directed from your bathroom basins, laundry (both washing machine and basins), showers and baths. It is not from toilets and kitchen sinks.

Greywater has traditionally in Australia directed straight into the water treatment process (sewage system) and not utilised within the home.  However, now that Australia has been and in some parts still going through a drought, there is obviously a consciousness about water and how we could be re-using it for a variety of purposes.

Greywater diversion is the easiest and most convenient way to re-capture some of the water in our households. The best re-use of greywater is to divert the water from the sewerage system and utilise it for watering plants or lawn around your garden. Some people even use it for washing their car, other vehicles or even their house. This in turn, reduces your requirement to use potable (or drinking) water on your garden, leading to more efficient use of potable water. And it will also result in a cost saving for you, as you won't need the water from the water mains that you use to use on your garden and you therefore won't be charged for this water.

It is important to note, that diverting greywater for immediate re-use is considered non-treated greywater. There are systems which you can install into your house for greywater treatment, which allow you to store treated greywater water and utilise for a broad range of applications. As an example, treated greywater can be used for toilet flushing and washing your clothes (ie in the laundry). It important to note, if you don't have a treatment system for your greywater, you should not store it, as it will quickly turn septic.

Simple measures to divert your greywater for uses around your house, such as on your garden, include:

• collecting it with a bucket, for example, when you're showering; or
• connecting a flexible hose to your washing machine outlet pipe.

One important thing is to ensure that whatever you put into any of these input areas (eg laundry, bathroom) is appropriate to go onto your garden. Attempt to utilise products that have low nitrogen and phosphorous and salt levels. Inputs with either high levels of these or accumulation due to "over-use", can lead to issues in your garden, particularly if you have native plants.

So, let's all give it a go.

My initial problem, is that I will need to invest in a very long hose to be able to utilise my washing machine's water in my garden. But it will save me using my precious captured rainwater (see previous post) for garden purposes.

If you would like some more basic information on dos and don'ts of greywater and how to use it in your home, have a look at the Department of Environment and Resource Management's information page.




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Water conservation tip...recycling

Some of you may have heard that rinsing your recyclable containers is a nice thing to do. This means that the containers that you recycle are therefore not so stinky and gross when they go to being sorted.

Instead of wasting clean, drinking water to rinse these out, collect up your containers that require rinsing each day and use the end of your washing up water to rinse them out.


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Front versus top loader washing machines

Currently I have a top loading washing machine, fairly typical of most modern residential laundries. However there has been in recent years discussion about the water efficiency of front loaders and some councils/governments have been offering rebates associated with the purchase of these front loading washing machines. I wanted to know more about these front loaders because it may be a decision to be made in the future when my current top loader packs it in.

Apparently the front loading machines are so water efficient because instead of filling the water over the top of the entire load they only fill up a third of the way and then the machines turns the clothes into water. Apparently also the front loader doesn't require a complete new fill of water for the rinse cycle, but rather just sprays additional clean water onto the clothes (some websites indicate that this may lead to a less thorough rinse).

Apparently the front loaders are also 'easier' on the clothes, meaning the clothes will last longer, because there is no centre agitator. Front loading washing machines can also do larger loads because there is more space, again due to the lack of the central agitator (apparently this is just a new thing, as they traditionally actually had a smaller capacity).

Negatives, they are typically more expensive at the initial outlay (purchase price), might be a little tougher on your back because you have to bend over to reach into the washing machine, you can't run back to add an additional sock that you found behind the cushion on the couch as they lock once you start the wash cycle and they require specific washing powder (because of the reduced water level, requires a low-sud detergent) but these are becoming more common.

From this research I expect that I would end up purchasing a front loading washing machine for my next machine if the current one packed it in. Pin It

Removal of pesticides from fruit & veggies

In an ongoing examination of pesticides/chemicals that occur on our commercially produced fruit and vegetables, I have found an interesting article that discusses the effectiveness of rinsing these products in water on the web.

The article is located at: http://www.ct.gov/caes/cwp/view.asp?a=2815&q=376676.

This research indicates that the mechanical washing of fruit and vegetables, that is the physical action of washing in water, can cause a reduction in the amount and types of chemicals that are typically found on commercially available produce (at least in the States). This was fascinating to me. The article does go on to say that such washing has to occur for 30 seconds, which to me seems like a significant amount of time and something that most people wouldn't undertake on a regular basis.

The research also examined the use of some of the commercially available (again in the USA) products that market themselves at reducing the chemical load on your produce. The findings were that these products didn't reduce the chemical load any more than simply washing with water.

Well it is off to scrubbing my fruit and veggies (from the shops) under the water for what will seem like an eternity for me.

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Hang your washing in the sun!

Another tip for a smaller environmental footprint that I really didn't consciously consider as a way that I make a difference, but after reading it in a book I thought this was definitely a way that I make a difference.

What am I talking about? Well, instead of putting your washing straight from the washing machine into a dryer in your laundry, why not hang it on the washing line in the back yard? There are so many benefits for doing this.

1. You get outside and this is always a positive
2. If you hang it out in the middle of the day you'll probably also get your required dose of vitamin D
3. You don't have to pay for the electricity that would have been used to power your dryer
4. You won't contribute to additional electricity usage to power your dryer
5. Whites will be whiter, without using any nasty chemicals. The sun actually whitens whites and can remove some of those stubborn stains from your clothes/sheets/towels, etc
6. Even if it rains during the 'drying process' it will wash some of those nasty chemicals that some of us wash with out of your clothes and then will dry your clothes once the sun comes back out.

I think another reason that this wasn't something that I consider as something good for the environment is because I have always done it and my mother has always done it. This I find interesting because we can accept behaviours/activities into our life and make them an everyday activity and not consciously recognise that we are making a positive difference.

So, whatever you choose to do to reduce your environmental footprint, it might be difficult or annoying to start with but over time it will become part of your normal routine and you'll be making a difference without considering it a burden on your lifestyle. Just start small and do things that are manageable for you and your family.

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Washing your veggies

I have recently been thinking about more actively washing my veggies and fruit that I buy from the supermarket. My main aim with undertaking such an activity is to remove nasty chemicals from the surface of these foods and ensure that my family doesn't end up consuming more than our fair share.

Unfortunately the garden isn't at a level of self-sufficiency which means I have to buy commercially grown veggies. Up until now I haven't really taken the effort to wash the veggies that I buy. But now that I have a toddler and thinking more about what goes into our bodies, I wonder what the benefits of washing them under water is.

From my basic research most of the initial websites I have looked at on this topic indicate that washing them under the tap will wash off dirt and bacteria. Nothing that I am particularly worried about. I am more concerned about the pesticides, herbicides and other man-made agents that farmers spray around their farms to make their fruit and veggies more commercially attractive.

There are also adverts on the net for products which you can utilise to assist you with cleaning your fruit and veggies and once again can't seem to determine with any certainty that these products would in fact assist with my aim of removing the toxins.

So does washing in water, with no a lot of elbow grease, in fact remove these nasty chemicals? More research required! Pin It