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My Window Farm

#1 User is offline   Blessednight 

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  Posted 10 July 2011 - 07:31 PM

Came across our.windowfarms.org and decided to test my hand at creating my own window farm. Essentially the concept is hanging vertical line of inverted bottles on your window and using an air-lift pump to cycle the nutrients through. As some materials are more readily available here in sg, I adapted and decided to use hooks to hang the pots on my window grille.

http://farm6.static.flickr.com/5235/5914666682_d238e11eed.jpg

The bottle is the top half of a usual 1.5 l drink bottle, covered with some oxidized aluminium foil I found lying around to block out light. I recycled some Starbucks plastic cups to use in place of the net pots and drilled some holes into the base and sides.

http://farm7.static.flickr.com/6002/5914666998_23fccc8c16.jpg

The hook is a foot long S-hook I bought from those home stuff shops commonly found in HDB estates. Bent the bottom hook 90 degrees to hook around the neck of the bottle. Later I would wind some Aluminium wire bought from Daiso around the bottle onto the wire.

http://farm7.static.flickr.com/6020/5914104395_bcf0292322.jpg

Here's the "plumbing" system. A simple T-joint is used and an air-pump pumps air in through the side. The long loop attached to the bottom prevents air from exiting there. Thus the air exits through the top of the T, and in the process carries water out.

http://farm7.static.flickr.com/6055/5914104773_34682feb57.jpg

Here's the reservoir, a 6 litre mineral water bottle I found in Thailand. That alone supplied my water needs for 3 days there!

http://farm6.static.flickr.com/5080/5914669098_d85f22214a.jpg

Not wanting to damage the cap of my bottle, I cut up another small water bottle and use it as a funnel for the return. Stuffed aquarium filter wool which I got from my brother's aquarium to catch any debris as well as to keep mosquitoes out.

http://farm6.static.flickr.com/5314/5914668522_997b44b0fc.jpg

A tube shoved into each bottle cap drains the water from one bottle to the next. The bottle caps are very elastic, so no need to seal the hole, which I punched using some screwdrivers. The original window farm designs didn't use a tube but people reported splashing, so I decided to go with the tube.

http://farm7.static.flickr.com/6138/5921706968_debf83e277.jpg

This is the "silencer", which blocks out the gurgling noise of water and air rushing out of the tube at the top. It's just simply 2 bottle caps which happen to mate really well.

http://farm7.static.flickr.com/6003/5921143121_0cde1fbd81.jpg

The silencer attached to the water output, attached to the hook using the same aluminium wire. Those are my week old kangkong seedlings.

Here's a video of the plumbing system undergoing a trial run. Note the silencer hasn't been installed and I was trying out an alternate method of hooking the lower bottle, which fail cos you can see it was leaky.

Feel free to comment and I'm eager to learn from other window or hydroponic farmers out there.

Here are some of the parts and process of my window farm

This post has been edited by Blessednight: 10 July 2011 - 07:32 PM

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#2 User is offline   keroleen 

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Posted 10 July 2011 - 10:32 PM

Very interesting .. but seems too complex to me to "copy" it. :(/>
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#3 User is offline   Blessednight 

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Posted 11 July 2011 - 06:56 PM

View Postkeroleen, on 10 July 2011 - 10:32 PM, said:

Very interesting .. but seems too complex to me to "copy" it. :(/>


It can be as complicated, or as simple as you want it to be. The simplest I've seen is just cut out inverted bottles strung together, with a pail at the bottom to catch the run off, then watered from the top by manually filling a reservoir bottle.

http://farm7.static.flickr.com/6150/5926000800_fa93f56115.jpg

Here's a pic of the entire setup. A little bit hard to see cos of the bright sun coming in from the window. I'll take another later tonight.
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#4 User is offline   Blessednight 

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Posted 14 July 2011 - 01:26 AM

Here's a pic of my setup taken at night. So far I've only 2 pots up with plants in one. Need to get more leca balls to transplant my tomato in. Will be adding a few more pots when my lettuce germinates. Still deciding what to grow on the topmost pot.

http://farm7.static.flickr.com/6023/5934384982_6739905c00.jpg
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#5 User is offline   eekia 

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Posted 15 July 2011 - 05:28 PM

Interestinggg.. thanks for sharing
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#6 User is offline   water Zui Zui 

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Posted 26 July 2011 - 09:44 PM

it looks fun and interesting!

do you leave the pump switched on the whole day?
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#7 User is offline   Blessednight 

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Posted 26 July 2011 - 09:53 PM

View Postwater Zui Zui, on 26 July 2011 - 09:44 PM, said:

do you leave the pump switched on the whole day?


Nope I have a timer that's set to turn it on for 15 mins every 2 hours from 6 am to 12 mn. Although the recommended was 15 mins every hour, I think it depends on the medium in use. Recommended medium is pure leca but I mixed vermiculite in mine so I just water every two hours. Should keep the medium moist while allowing the roots to air.
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#8 User is offline   Shanlight 

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Posted 10 August 2013 - 09:09 PM

Hi, any latest update. I also saw the windowfarm and now trying the water bottle at my balcony here. Watering is now manual as I do not know how to do the pump thing you have. Will get the picture up later. Please advise. thanks
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#9 User is offline   blessedday 

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Posted 12 August 2013 - 11:20 AM

Here's how we did our air-lift pump.

http://farm4.staticflickr.com/3753/9489552877_efee7dca33_b.jpg

And here's some photos of our current setup.

http://farm6.staticflickr.com/5501/9489598517_ec0e8bb169_b.jpg

http://farm8.staticflickr.com/7445/9489589961_c439a99294_b.jpg

http://farm4.staticflickr.com/3734/9492379452_38888b1dc5_b.jpg

http://farm4.staticflickr.com/3692/9492373708_8a795dc6a4_b.jpg
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#10 User is offline   Sandi 

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Posted 03 September 2013 - 09:33 PM

Awesome and ingenious gardening.....although looking at the set up gave me a bit of headache but I still applaus you for your perseverance
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#11 User is offline   David Yew 

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Posted 21 September 2015 - 10:07 AM

Hi!

I just started my small window farming using drink bottles joined to each other at the cap.

I made my small geyser airlift pump using just an eye drop bottle.
Tested to lift water up to 1.9m so far.

Have a look at https://www.youtube....h?v=1G2Me0zf4cY

Hope to grow my own veggies soon. :)/>
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