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How to stay legionella-free

 
Steve Farmer
Posts: 369
Location: South Tenerife, Canary Islands (Spain)
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forest garden greening the desert trees
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Hi, I don't have a particular greywater design in mind, but have been reading up in anticipation of a future dwelling on my land, which will probably start out as an agricultural building with kitchen and toilet block, likely fed by municipal agricultural water (from the mountains without any treatment). Grey water from the sinks and possibly urine will go to irrigation as water is very scarce round here.

Our temperatures are usually in the range of 20C - 40C, and I've read that legionella thrive in the top end of this range. If I put in a system of pond(s), reed bed(s) and storage tank(s), is legionella something I need to worry about, and if so how do I ensure it's not a problem. Thanks.
 
Tyler Ludens
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Location: Central Texas USA Latitude 30 Zone 8
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Don't ever try to store greywater, it becomes horrible stinky blackwater: http://oasisdesign.net/greywater/misinfo/#storage
 
allen lumley
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Location: Northern New York Zone4-5 the OUTER 'RONDACs percip 36''
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Steve Farmer : When someone starts talking about 'greywater' probably the assumptions of how the Humanure is going to be handled will climb

with every new person adding on more person/assumption. My water for clothes washing comes from water off of my roof, this is 'soft water' and

I use less soap and bleach I save the 1st wash water specifically for flushing, and the second or rinse water gets pumped back into the laundry

sink and re-cycled for presoak and the 2nd load

At my next location a Clivus Multrim (?), is waiting to be used

So different systems for different locations . I have to second Tyler's comments on trying to 'save' greywater . Todays High efficiency washers

quickly develop a 'sour greywater smell' so that I prefer not to use them . Better to try and save rainwater .

Now about Legionnaires Disease, the germ is everywhere and needs several minutes exposure to temps in the 55ยบรง range.to kill it. Here the good

news is that water needs to become aerosolized which means you are taking a shower and breath the bugs in. While it is possible to have

legionaries disease germs in your rain barrels, It is most unlikely that you will ever be aerosolizing your grey water and breathing it in.

Sunlight especially Uv rays really knock back the surface populations -as always use common sense and good judgement

For the Crafts Big AL
 
Art Ludwig
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If water is scarce, suggest you skip the wetland http://oasisdesign.net/greywater/misinfo/#context
 
Steve Farmer
Posts: 369
Location: South Tenerife, Canary Islands (Spain)
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forest garden greening the desert trees
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Art Ludwig wrote:If water is scarce, suggest you skip the wetland http://oasisdesign.net/greywater/misinfo/#context


I'm trying to green the desert. My mind can see a wetland here so I will make it happen :p
 
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