Natural swimming pools and airlift pumps
Hi guys,
Concerning the use of bubblers in natural swimming pools, Paul's guest in the podast says she isn't convinced about the effectiveness of the bubblers as pumping devices. Paul expresses the same concern. They are missing something here: bublers function as airlift pumps, and can be very effective and powerful if the air flow is driven up.
http://en.wikipedia.org/wiki/Airlift_pump
Air lift pumps are used a lot in water treatment plants, they move the full flow of the plant (albeit on small heights) and are incredibly simple and reliable. Using air lift pump technology that dubbles as a bubbler is an_excellent_technical solution, i.m.h.o.
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320 gallons per hour on 5 watts. Show me another water pump that can do that for $40 and can be built yourself.
If you want to know how to move water in efficient ways, talk to an aquaculturist, not a permaculturist.
Some of the Koi forums have excellent stuff on airlifts. Go over here: http://www.backyardaquaponics.com/forum/viewtopic.php?f=1&t=11704 adn read through everything related to airlifts. There are calculators, research papers, examples, tests, etc.
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The airlift I mentioned earlier (320 gallons per hour on 5 watts) is using air at about 1.5 psi.
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Hi I’m David. I am probably the only person to have two Natural Swimming Pools. The reason for this indulgence was to make a film of the process and produce a DVD for Permanent Publications – Natural Swimming Pools - A Guide to Designing and Building Your Own . I have also made a short film for the BBC about Natural Swimming Pools introducing the concept to a wider audience here in the UK. As a consequence of all of this, I have started giving courses to fellow self-builders who have traveled from far and wide to come and sit in my garden and talk about pools and ponds for two days. What could be nicer?
David Pagan Butler organicpools.co.uk
Frere Daran wrote:Subject; 121 – Natural Swimming Pools Part 1 PODCAST
Hi guys,
Concerning the use of bubblers in natural swimming pools, Paul's guest in the podast says she isn't convinced about the effectiveness of the bubblers as pumping devices. Paul expresses the same concern. They are missing something here: bublers function as airlift pumps, and can be very effective and powerful if the air flow is driven up.
http://en.wikipedia.org/wiki/Airlift_pump
Air lift pumps are used a lot in water treatment plants, they move the full flow of the plant (albeit on small heights) and are incredibly simple and reliable. Using air lift pump technology that dubbles as a bubbler is an_excellent_technical solution, i.m.h.o.
It's really a beautiful subject. If I was to have a pool, I would definitely go the natural swimming pond route. I found some info on "Inspiration Green" website. I did a post on it, but included a number of other subjects they go into. I love their references at the bottom of their pages as well. Here's a link to the article and website.
Inspiration Green: Natural Pools and Swimming Ponds
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It's lovely to hear such a response to my Natural Pools and airlift ideas!
Hi I’m David. I am probably the only person to have two Natural Swimming Pools. The reason for this indulgence was to make a film of the process and produce a DVD for Permanent Publications – Natural Swimming Pools - A Guide to Designing and Building Your Own . I have also made a short film for the BBC about Natural Swimming Pools introducing the concept to a wider audience here in the UK. As a consequence of all of this, I have started giving courses to fellow self-builders who have traveled from far and wide to come and sit in my garden and talk about pools and ponds for two days. What could be nicer?
David Pagan Butler organicpools.co.uk
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They weren't very bright, but they were very, very big. Ad contrast:
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