Grey Water

[bwana]

But can be handled in the grey water filtration process. Grease fat and other crap can't easily.
Hence why we prewash dishes before they go into the dish washer, as the dish washer water also ends up in my grey water system.

Heresy.

Anyway - kitchen waste water, including dishwasher and sink, is considered to be "blackwater" as opposed to grey so you're not gaining anything by prewashing except for a higher water bill and it shouldn't go anywhere near a greywater system.

 

[Geoff.D]

Heresy.

Anyway - kitchen waste water, including dishwasher and sink, is considered to be "blackwater" as opposed to grey so you're not gaining anything by prewashing except for a higher water bill and it shouldn't go anywhere near a greywater system.

If you say so. Our water bill is pretty constant at 5 - 6 kl per month for 2 people. What is yours?

 

[bwana]

If you say so. Our water bill is pretty constant at 5 - 6 kl per month for 2 people. What is yours?

±7-8kl for the four of us.

And yes, we should be using less but it's harder with kids.

 

[Geoff.D]

Dishwasher and sink water is sewerage effectively... but prewash could allow you to reuse dishwasher water I imagine.

Yes it does very effectively. But then we wipe all plates out first into the dirt bin, pots and pans as well with very little grease etc that goes even down the sink.

 

[People$champ]

What type of Lawns do you have as some lawns are sensitive to th PH balance of the soils ?
And soaps are alkaline based which probably means the soil would need some lime treatment to keep the balance between the 5.5 - 7.5 range.

 

[Geoff.D]

What type of Lawns do you have as some lawns are sensitive to th PH balance of the soils ?
And soaps are alkaline based which probably means the soil would need some lime treatment to keep the balance between the 5.5 - 7.5 range.

Where I am the soil is acidic. So I have not hesitated to use greywater to water plants.

 

[B-1]

It makes a huge difference. I want to design a simple prefiltration and purification system for greywater and sink / dishwasher water. It will likely require physical cleaning weekly but should allow the greywater to be reused. I know it's not easily done but I believe it's doable.

Have a look grey water settling tanks. Makes a huge difference in removing soap, solids etc.

 

[|tera|]

My Mom has watered her garden this way for many years. Even making an out flow system and watering through pipes etc.
Plants look fine.

 

[rh1]

±7-8kl for the four of us.

And yes, we should be using less but it's harder with kids.

Apparently, we used exactly 10000 litres, not a litre more, which is weird as we only shower, use for toilets and do the dishes with our water. Drinking/cooking water we buy, laundry is done with wellpoint water after filtering with a small pool pump.

Buckets are in the showers to flush the toilets.

 

[bwana]

Apparently, we used exactly 10000 litres, not a litre more, which is weird as we only shower, use for toilets and do the dishes with our water. Drinking/cooking water we buy, laundry is done with wellpoint water after filtering with a small pool pump.

Buckets are in the showers to flush the toilets.

I've just started reading my own meter for comparison's sake. I'm pretty sure the meter reader is guesstimating.

 

[JustAsk]

What type of Lawns do you have as some lawns are sensitive to th PH balance of the soils ?
And soaps are alkaline based which probably means the soil would need some lime treatment to keep the balance between the 5.5 - 7.5 range.

True, grey water will raise the ph with time. But it would need something like elemental sulfur to lower it, not lime. Lime is an alkaloid too. Plus salt is used as a filler in washing powder.

I would never use grey water in a garden. It adds nothing beneficial but slowly kills off good microbes, alkalize your soil and add to salt build up. Now the toilet stuff... now we're talking.