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Sure HV, can you post a link?
And that's right.....it's like a drip ring setup the same as every other bucket. The only difference is that it pulls the water from the last bucket and into the rez. That creates a vaccum in that bucket so what happens then? It pulls it from the next bucket and so on all the way around the group and back to the rez.
Its really BRILLIANT and I THOROUGHLY applaud GH for thinking of it. :thumbsup:
If a bigger diameter cylinder is used intstead of the normal waterfarm one and a bigger air pump, would this speed the circulation of water up?
http://boards.cannabis.com/hydroponi...ggestions.html = my link
Yes we do Miss to much!!!!!Quote:
Originally Posted by Weedhound
:wtf::wtf:
:jointsmile::jointsmile::jointsmile:
Hydro V what I saw happen with a stronger air pump was actually that it STOPPED working.....the air pressure was too strong to let any water into the tube so it stopped pulling water altogether.
If you look into how an airlift pump works you can see why certain things happen.
Running a really massive pump on a small tube doesn't lift water because too much air will clear the pipe of water, and give the incoming air a straight shot up to the surface. It doesn't want to do any more work than necessary, so it doesn't bother to lift any water.
Think of it this way: if the air pressure is much higher than the water pressure at that depth, it will have the ability to push down harder than the water pushes up. A certain amount of that likely happens anyway or the water would try to go up the airline, but if it's too much stronger the water will have trouble getting around the air bubbles so that it can be lifted by those bubbles.
How it works:
Basically adding air to water reduces its density. When the air/water inside the lift pipe is less dense than the water outside the pipe, the water pressure at the bottom of the pipe tries to force water inward and upward to equalize the pressure. The air/water mixture literally floats on top of the denser water and thus can be raised above the surface of that water.
Conversely, things that normally float in water can actually be made to sink if enough air is forced into that water. (They've demonstrated that ships can be sunk if an underwater vent were to release sufficient quantities of gas into the water under the ship. It's one of the theories behind ships disappearing in the Bermuda Triangle.)
Point being that you've got to have the right mixture of air and water. Too much air and the water won't be able to "climb" on top of individual bubbles to be lifted up. Way too much air and the air will actually be forced downward to escape both up the pipe and out the bottom. And if you have too much water there won't be enough lifting force to make it come out the top.
Changing the diameter of the pipe (making it larger) means you need more air to lift the water, and that more water can be lifted. Bubble size also plays a role: if your bubble size is the same as the pipe's inside diameter, you'll lift water no matter what. Even at very low air pressure differentials you'll lift water, but it will go slow.
Also, regardless of the amount of air, water, or pipe size, an airlift pump can only lift water to a height of one-half the length of the submerged pipe.
The GH pumps that come with the system are only 8 Watts. I upgraded to a Pond Master and what a difference. I was constantly disconnecting and trying different setups. That may all be true with a single system but on a larger system a larger pump is a good upgrade as well as adding Air Stones, The development you see out of one plant in a month in the DWC would take 4 months in soil....Quote:
Originally Posted by basementjungle
got 3 waterfarms and its a hella work checking just three the ph ppm temp etc i heard and wanted to buy a waterfarm upgrade recirculating thing but could find much about it or if there was a cheap route maybe building one NEED HELP PLEASE
http://boards.cannabis.com/hydroponi...-dwc-club.html
if you want to go a cheap route at least it doesn't cost anything to read and learn. Anything and EVERYTHING you might want to know if in this thread.
Good luck.
Hey WH I miss our conversations:thumbsup:. I'm playing in dirt for a minute come and check me out we can talk HYDRO over their too!!!! LOL
GL420:jointsmile::jointsmile::jointsmile:
http://boards.cannabis.com/indoor-gr...ml#post1874115
I'm not sure if you're disagreeing with me here.Quote:
Originally Posted by GreenLeaf420
In a bigger system like what you're talking about it would take a lot of air pressure to interrupt the function of an airlift pump. I don't know the math, but I know it would be a lot. So yeah, you could use just about any normal air pump you find with good results.