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Pic of the week


Pic of the week poll #14
MT28

Reducing Nitrates

37 posts in this topic

Yes, it feels very strange to be done!

 

The topic is heritage tourism and historical memory in contemporary China. Happy to have aquaponics occupy my brain for a while!

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Find instructions here for how to put a pipe through the bottom of your container.  You should use 3/4" or 1" pipe and fittings. 

 

http://www.truetex.com/bulkhead.htm

 

http://gardeningcamp.com/thewiki/index.php/Hydro/PVCBulkhead

 

You will fit a standpipe into this "bulkhead" inside the container and a drain pipe on the outside.

 

Please watch

.  This simple device lets your filter fill and drain, which maximizes oxygen to the plant roots.

 

shows how to make a standpipe, bell, and media guard.

 

 

 

 

 

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Did your research include traveling to China?  I'd love to go there.

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China is a fascinating place.   I have read that they do seem bulldoze beautiful old stuff with about as much thought as we might disinfect a counter.  I expect they will come around to preserving some of it.  4000 years is a lot of civilization. 

 

Shahaho, thank you for taking the time to post this information.  I didn't know you could improvise a bulkhead, and I didn't know about the polyethelene Rubbermaids for water storage.  All my fish are in stock tanks outside.  I work with a manual/wick enabled/pseudo aquaponics.  Am always experimenting, and trying to automate a few more things. 

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I've watched the videos multiple times now, showed them to my dad and think we have a reasonable idea of how to build and install the siphon now--thank you.

 

Will water enter the grow bed simply through the outlet tube of my canister or is it more complicated than that?

 

----

 

Shakaho:

Yes, I've been to China many many times for study, field work etc. Funded trips to China were really the best part of my graduate studies and I highly recommend taking at least one trip there. China's at once very modern and very traditional and because of strong regionalism, every single locality looks and feels very different and has its own food, customs, arts, landmarks etc. Of course your experience would highly depend on where you visited and what kind of guides you had. 

 

Distaff:

Actually, although many Chinese people have a very strong sense of history and heritage, many of their heritage sites are relatively new, built from the 1970s to the 90s, not just because of the destruction of rapid urbanization (i.e. bulldozing), but also because traditionally China didn't have the value system of ruins preservation. Chinese buildings tended to be built of transient materials such as wood that would require periodic renovation or often reconstruction every couple decades, so the idea that the "original" should be preserved simply wasn't as prominent as in the West. Another major factor was that 20th century China went through several materially destructive wars and periods of social upheaval, the most recent of which was the Cultural Revolution, so by the late 1970s very few historical sites were actually left intact. Really, heritage sites in China nowadays are more about revival and renewal although they often become entangled in global discourses of preservation.

 

Ironically, most of the "bull-dozing" that you hear about is bull-dozing of old neighborhoods and buildings from the mid-20th century that are being cleared away either to make room for newer buildings that conform to Western standards of modernity (i.e. include plumbing and electricity) or to build restorations of structures from before the 20th century, which the state now considers worth preserving as part of Chinese cultural heritage. 

 

Sorry if that explanation was a bit long. Thanks for humoring me and engaging me on the topic!

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I've watched the videos multiple times now, showed them to my dad and think we have a reasonable idea of how to build and install the siphon now--thank you.

 

Great!  If you have any questions, just ask.

 

Will water enter the grow bed simply through the outlet tube of my canister ?

 

Yes.

 

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Ok, so here is a summary and plan I drafted for building the veggie filter. I'd love feedback before I go ahead and buy all the parts and get to work on the building.

 

How-to sources:

 

Basics of indoor aquaponics system (ugly example)

 

More complicated video:

http://ibcofaquaponics.com/

 

How to make the box:

 

How the bell siphon works:

 

How to make a bell siphon (standpipe, bell, media barrier + bulkhead and drain pipe):

 

Basic plan for the aquarium shelf and planter:

 

6ed229c4678369bf54054ccd406dc1f7.jpg

 

Items needed for shelf:

·      Shelf board (54”L X 8”W) and side boards (52.5”L X 8”W)  

six of these cut to size: 1” X 4” X 8’

http://www.homedepot.com/p/WeatherShield-1-in-x-4-in-x-8-ft-Ground-Contact-Pressure-Treated-Board-010408APG/206949799

·      Wood nails and wood glue

·      Furniture shims (for my uneven stand)

https://www.amazon.com/dp/B002Y0LIQE/ref=wl_it_dp_o_pd_nS_ttl?_encoding=UTF8&colid=41V1G419WL0S&coliid=IUTTORZWSQ3FL

 

Items needed for planter:

·      Planter box w/ drip tray

36”L X 7.5”W X 5.75”H (volume is about 25 liters)

http://www.homedepot.com/p/Bloem-7-5-in-x-36-in-Dura-Cotta-Window-Box-in-Black-DCBT36-00/205054805?MERCH=REC-_-NavPLPHorizontal1_rr-_-NA-_-205054805-_-N

·      Grow media (need about 20 liters)

https://www.amazon.com/ROOT-GMC25L-Pebbles-Liter-4mm-16mm/dp/B00CJIAGY6/ref=sr_1_8?s=lawn-garden&ie=UTF8&qid=1466548076&sr=1-8&keywords=clay+pebbles

·      Plants: Basil, Mint, Chives, kale

 

Items needed for siphon (Home depot):

·      3/4” Bulkhead

https://www.amazon.com/Lifegard-Aquatics-Double-Threaded-Bulkhead/dp/B001EUG9PU/ref=sr_1_1?s=pet-supplies&ie=UTF8&qid=1466546349&sr=1-1&keywords=3%2F4%22+bulkhead+fitting

·      ¾” standpipe (3/4” coupling, 3/4"straight through, 3/4"slip/female thread, 3/4"male thread/1" slip)

·      media barrier (4” straight through with slits cut throughout)

·      bell = 2” straight through w/ 2” cap (airtight seal) and slits 1/2” from bottom

·      drain pipe (3/4” straight through)

·      plumbers epoxy putty

https://www.amazon.com/PC-Products-PC-Plumbing-Moldable-Concrete/dp/B008H4QYSI/ref=sr_1_1?ie=UTF8&qid=1466550160&sr=8-1&keywords=plumbers+epoxy+putty

 

Plant Lighting:

·      2 of these to clamp on the back of the shelf

https://www.amazon.com/Hgrope-Flexible-Degree-Hydroponic-Greenhouse/dp/B018HQSXB6/ref=sr_1_1?ie=UTF8&qid=1466812874&sr=8-1&keywords=clip+plant+lights

Edited by MT28

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Very impressive!

 

I wouldn't use mint in this system.  It will take over completely, crowding out your other plants.  Chard grows very well in my aquaponics systems and looks beautiful.

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I just love these systems. I'm very tempted to try one when (if!) we move, just to see if it improves my water quality at all. I've not had issues with nitrates given my current stocking and filtration but who knows, as the fish grow bigger.

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Please take pictures during the construction process and use them in a DIY thread.  Many people will benefit.

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Very impressive!

 

I wouldn't use mint in this system.  It will take over completely, crowding out your other plants.  Chard grows very well in my aquaponics systems and looks beautiful.

 

Yeah! I got Mint in my front yard that has taken over :o its more of a weed :o

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Very impressive!

 

I wouldn't use mint in this system.  It will take over completely, crowding out your other plants.  Chard grows very well in my aquaponics systems and looks beautiful.

Thanks! That's a good suggestion. I currently have mint growing in a pot with a couple other herbs and it does tend to take over, so I guess in the pot it will stay. I was trying to pick plants that I typically use for salads and smoothies anyway and chard will work just as well.

 

I will definitely take pictures and post a DIY thread!

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