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Thread: Going to attempt an air lift
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07-06-2018, 04:47 PM #121Freddyboy the legend
"we are water keepers first"
Johnathan
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freddyboy Thanked / Liked this Post
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07-06-2018, 04:56 PM #122
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freddyboy Thanked / Liked this Post
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07-06-2018, 05:46 PM #123
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Ajm Thanked / Liked this Post
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07-06-2018, 05:47 PM #124
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07-06-2018, 05:49 PM #125
Good mate she 'll be keeping you on your toes then . Hope you haven't got the nurses out fit on mind
Sent from my SM-N950F using TapatalkFreddyboy the legend
"we are water keepers first"
Johnathan
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freddyboy Thanked / Liked this Post
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07-06-2018, 05:51 PM #126
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07-06-2018, 05:52 PM #127Freddyboy the legend
"we are water keepers first"
Johnathan
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freddyboy Thanked / Liked this Post
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07-06-2018, 05:53 PM #128
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07-06-2018, 07:06 PM #129
Well it is up and running made a few alterations so now just need to see if it will foam.
It's quite noisy so may need to alter the pipe coming out of the horizontal pipe?
Got a few photos of the various attempts so will add them later when I am on the laptop.
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bigcarpchaser, freddyboy Thanked / Liked this Post
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08-06-2018, 01:34 PM #130
Made a couple of alterations to the air lift this morning and took a few photos. No power at home at the moment or I'd put the photos on here.
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bigcarpchaser, freddyboy Thanked / Liked this Post
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09-06-2018, 09:21 AM #131
Power's finally back on so will see if I can add the photos now.
Unfortunately the photos are all showing up on their side for some reason
This was the first attempt using a drive tube length of 1m just to see if it would work.
Attachment 24060
Second attempt with drive tube cut down a bit.
Attachment 24061
Third attempt with drive tube cut down a bit more plus I added an end cap onto the top of the drive tube and altered the pipe work where hopefully any foam that is produced will come out. Just for the purpose of testing and proving the outlet was set up to empty back into the pond just in case it fired out water. At least the photo's the right way up this time - must only allow photos in landscape orientation not portrait
Attachment 24062
Fourth attempt just altered the foam outlet.
Attachment 24063
This is how the fourth attempt was set up. The inlet at the bottom was a 2" pipe with a pump cage on the end to stop any fish getting pulled into it.
Attachment 24064
Fifth attempt. Replaced the 2" inlet at the bottom and fitted a 4" pump cage to hopefully aid the flow into the air lift. Also the T on the horizontal pipe has been removed and an elbow has been fitted to the top of the drive tube. In the first attempt the pipe was 1030mm long between the top and bottom Ts.
Attachment 24065
Fifth attempt in situ.
Attachment 24066
BTW the photos really shorten the pond size as it looks like a builder's bucket in a couple of them
I'm going to have another go at a longer drive tube now I have got the 4" pump cage on the inlet just to see what happens but even with the first couple of attempts it shows it is possible to have the water coming out quite a distance above the water surface even with a badly designed air lift. I did try to stick to Trace's original design but it's always worth having a tinker here and there to see what can be achieved and glad I went for flexi rubber boots and 2" pipe. Was just lucky with a few additional fittings that made the pump cage additions possible.
The air stone is a modified 30mm x 130mm using 8mm air line fed from a 60 lph air pump (I think it's a 60 will check that later). At least I didn't knacker the air stone this time !!!
The air line is probably about 4m long so that could be shortened in the final version but as I said earlier it was just a trial and error project to see if it would - work at all, give a steady flow, give a decent flow and also if it could lift any height above pond water level. So far I think it has done all of those not at the same time but maybe the next attempt will, hopefully.
With the double elbows it was quite noisy and currently it's not producing any foam although the movement across the surface of the pond has cleared 90% of the foam you can see in the first 2 or 3 photos.
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09-06-2018, 09:27 AM #132
It's difficult to see the flow rate on the third, fourth and fifth versions as the outlet pipe is closer to the water and the angle the photos are taken don't help either.
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09-06-2018, 10:30 AM #133
Glad you got it running frimley :-)
even with the first couple of attempts it shows it is possible to have the water coming out quite a distance above the water surface
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Frimley Koi keeper, freddyboy Thanked / Liked this Post
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09-06-2018, 10:43 AM #134
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Frimley Koi keeper Thanked / Liked this Post
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09-06-2018, 10:47 AM #135
Thanks, and not a trebuchet in sight.
I'm going to try with a longer drive tube again now that I've got the 4" cage on the input just to prove a point or not as the case may be
When it is running there is quite a lot of vibration on the air lift and with the alteration to the foam outlet it is definitely a bit quieter. Just can't work out with all the foam on the surface of the pond there is none coming out of the air lift. Is this because the DOC is more dense in the foam on the surface and not so much at the bottom of the pond?
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09-06-2018, 10:50 AM #136
Thanks Fred, I was well surprised when the water came out of the outlet in the first attempt which was probably at least 12" above the pond surface
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09-06-2018, 11:44 AM #137
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16-05-2019, 08:21 PM #138
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Frimley Koi keeper, freddyboy Thanked / Liked this Post
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16-05-2019, 08:34 PM #139
Mark the depth of the joint into the fitting then 2/3"s below it apply a gentle heat all round pipe with a Blow lamp and slowly ease a slight bend into the pipe warm an area around 4"s long or longer or easier still glue an offset bend into the fitting, that'll give you a 45 degree angle though which maybe a to much?
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Frimley Koi keeper, freddyboy Thanked / Liked this Post
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16-05-2019, 08:49 PM #140
Best plants to remove Nitrate
pug has a very impressive veg filter on his pond, have a look at some of his his youtube videos....