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Slow Bio Sand Filtering - Grey water recycling using washing machine

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Uploaded by on Nov 15, 2009

Please note. Upon further tests I have found that a bio sand filter is ONLY good for filtering out particles. The water was slightly cleaner after the filter but not good enough to drink. I will probably buy a "berky" water filter which will clean the water much more after the sand filter to the point that I should be able to drink it.
The construction of my barrel goes like this. There is some PVC pipes in the bottom which have holes drilled in the bottom of them which allow the water to go inside them. The first 6 inches of the barrel is filled with pea pebbles. Then I cleaned about 200 lbs of sand and put it in the barrel. There is about 1 inch of water between the stable level of water and where the sand starts. All of the outside pipes are visible in the video.

Ok one last word. I was able to construct this for only like $5 which I spent on epoxy. All of the pipes and barrels and even the pump were found in the alley. Since this was a free project it was fun, however, I do not recommend using this system because the standing grey water gets stinky really fast and it hardly cleans anything. Since I use eco-friendly detergent I skip the whole sand filter thing now and just pump the water into all the plants in the front yard which are only for decoration and not for eating.

Feel free to ask my any questions regarding this system.

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Education

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Uploader Comments (richeeeeeeeeeee)

  • how much does it this system make in an hour?

  • About 10 gallons are filtered out per hour.

Top Comments

  • Smart...but whats with the wig?

  • what wig?

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All Comments (32)

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  • Atleast your Plants dont need a rinse before cooking

  • Cool guy!

  • well you have broken many conventions iv read about grey water use, non the less this is an amazing way to live green and i find your method to be very interesting

  • @eseguey007 to be honest this was the 6th greywater system video iv seen and then the only reason i watch this one was because i thought it would be interesting to see a girl with purple hair talk to me about greywater... boy was i thrown off

  • Hey ur pretty nifty!

  • Neat idea, you could also have enabled an outlet to be used in WCs

  • i like this ,you are great helping people like this .thanks; where did you get your pump ,what is the h\p and how much did it cost,

  • why would you do all the filtering to water your plants? Waste of resources/time. Rainwater is clean anyway and your washing machine water is fine for plants with greywater safe soaps. A little research would be helpful before posting this, I would hate to see other people doing this to water their plants.

    Also, thats not a slow sand filter, thats what we call a rapid sand filter. The UN guidleines for slow sand depth is 1.5 meters, MINIMUM. Also, your flow rate is too high to be called slow.

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