Hello to all.
After looking at DIY airlift projects done by the fine and creative members of the forum, I found that airlift actually does move around water for comparatively very low cost compared to conventional pump.
I'm interested into making DIY airlift using existing plumbing and hardware available locally.
There are sure plenty of more advanced and better design, but I found limitation of available items I can work on.
Here is the plan :
- Instead of making pressure chamber jacket surrounding the outside of the shaft, I plan to create pressure chamber canister at the center using 2.5" pipe with end caps and drilled 1mm holes all over the side and top.
- I intend to reduce the pipe diameter from 4 inches to 3 inches at a certain point (probably a couple of feet after the pressure chamber) to create more velocity and lift (intended use is as circulation pump from last filter chamber to main pond)
- I figure that extra holes may be needed to be bored through the main uplift 4" pipe just above the pressure canister in order to increase uplift flow.
As the pressure canister itself is blocking the uplift flow from the bottom, extra holes at the correct places would restore ideal flow.
Air generator would be 50-60 lpm piston pump connected to DIY pressurized air canister for better stability/constant of air flow and pressure.
It is also said that air reservoir improves the live of aerator (both diaphragm and piston alike).
Any thoughts?