Backyard Aquaponics
A place to discuss aquaponics

Came across this in my travels.

Seen threads on automation, autosyphons, stepped syphons etc...
any applications to what we're trying to do with AP??

What is SCWD?
SCWD is a water switching or current generating device. SCWD switches or alternates water in two or more directions, depending on set up. It is an excellent water current generator for both salt water and fresh water environments, whether tank or pond. SCWD also has garden applications. It may be installed in statuary to create alternating or switching water flow from one spout or outlet to another or create decorative displays in garden ponds. The patent-pending device, which requires no electricity, directs water between two outlet ports at varying intervals. The higher the volume of water flowing through the SCWD, the faster the switching response.


http://thereefshop.com.au/index.php?mai ... cts_id=805

And a link to a quicktime movie ....

http://www.vmatrix.com/clients/3IQ_scwd ... 6k_qt.html

Reading through the info, it looks like you cannot control the intervals except by varying the water pressure. It creates alternating spurts of water through each outlet. Each 'spurt' in their sample table of data ranged from 22 seconds to 4 seconds. It would be really cool if you could alternate after a certain volume of water had passed, no matter what speed your pump was. Then you could use it to alternately fill 2 grow beds. The way it looks, to get enough gallons to fill my grow bed, I'd need a high-powered pump, and then would blow the media out of my bed anyway.

But it's a really cool gadget. Maybe the company would make another version just for AP.

Not if you go the way of flood and drain... a small pump would slowly fill the bed then drain fast.

Ahh Aquamad, that's exactly what I was thinking...

curious how it works, anyone know a good reverse engineer... lol

yeh, their names are hack saw and angle grinder

Don't forget Hacks brothers, Hole and Chain!

Yep, them saw brothers are an unruly lot.

Gee, what you going to reverse engineer with chain?

and their cousin for those intricate jobs - apple corer

LOL, some one with some time set up a table with our "tools of the trade" and post a picture. i feel like a good laugh.

include the vibrator - maybe they should go into the calendar

Hey Les, if you have one let's see it

I posted my vibrator pic on Jim's thread

Beta be careful Les or someone might use that chainsaw vibe on you one day. Would not be a pleasant experience :-)

Sorry les, that's gotta hurt.