Air Lift from well casing

[carperama]

My static well water is at 55' and my pump is around 165'. I was thinking about running the two 1" pex air lift pipes about 135' down since I read the deeper the pipe is submerged the better the gpm flow you will get? I hope to get over 7 gpm to maintain the 3/4 acre pond level.

I have put 3 examples in the sketch and would like feed back since I have seen all kinds off different way to have the air hose enter the pipe and seen different size air hoses but think 1/4" to 3/8" is good for a 1" air lift pex pipe? Example 1 might be hard to get down the pipe so example 2 done twice and taped together in the shape of the casing will probably work the best? I don't like example 3 since the air hose would take up space in the 1" pex pipe, not sure?

[coolwon]

A well, with an air lift capability.

What would the air pump look like?

[aquaholic]

What height do you need to lift water above the natural water table?
Airlifts will struggle lifting beyond 150mm heights. They are excellent for moving water below or slightly above the normal water level.

Your air outlet (wouldnt use air stone) doesnt need to go right to bottom of the air uplift pipe but 1 inch pipe seems far too narrow to move much water volume.

Most people use a 45 degree cut at bottom of pipe to allow water entry. This is much easier than trying to keep the pipe reliably above the substrate

[aquaholic]

What height do you need to lift water above the natural water table?
Airlifts will struggle lifting beyond 150mm heights. They are excellent for moving water below or slightly above the normal water level.

Most people use a 45 degree cut at bottom of pipe to allow water entry. This is much easier than trying to keep the pipe bottok end reliably above the substrate

[carperama]

Sorry for not repling, email went to spam.

+15 Pool where I want to pump
0' Air pump on ground
-55' Natural static water level in 4" well casing
-165' Bottom of well

I plan on pumping the water up another +15' above the air pump and 100' horizontal to my pool. So I believe to answer your question 70' lift above the static water level to the pool. From the videos I've seen shouldn't be a problem to get water up just don't know if I can get 3.5 gpm from each 1" pex pipe, looks like I will have to have a air valve to control the amount of air on each 1" line to tweak the water flow.

I have a HALF OFF PONDS OX-Gen 14100 Air Pump - 5.30 CFM Diaphragm Aeration Pump which I plan on trying first?

I might be able to replace my well cap which now the 1-1/4" hole is in the center so if I can replace the cap with a offset hole so the home water supply 1-1/4" will be closer to the edge of casing I might be able to use a 1.5" with a 1/2" air hose instead of two 1" & 3/8" pipes, just have to see.

Here a video of someone that's done a lot of this: http://www.youtube.com/watch?v=hJAUTjURjEY&t=216s

[aquaholic]

You should contact the owner of that video for more information.

From the periodic water spurts, I suspect its a geyser pump with check valve but even that wont accomodate high head distances as the weight of water will overwhelm a check valve from opening after approx 1m ~ 1.5m height.

You could try dual check valves - essentially a hydraulic ram pump which can achieve incredible head heights but suffers from low flow rates.

So I'm only speculating which isn't much assistance.