Airlift powered pond with a Drum filter, by Koi.Gin

Here you can find some good examples of Airlift powered ponds.

Airlift powered pond with a Drum filter, by Koi.Gin

Postby Pssymon » Tue 07 Mar 2017, 1:50:58

A number of members on the Belgian site have given us permission to translate and share their Airlift powered pond builds here.
We will add more builds in the future, that way we will have a collection of professional examples showing how to implement Airlift technology.

The first pond build we will be sharing is Gino's build (Koi.Gin), which was started in 2010.
At that time, this was the first Airlift driven pond that used a drum filter.

Since the original topic is so large, I will update this topic a number of times until it is complete. I will do the same thing with the next topics that will be shared here.
Feel free to comment or ask any questions you may have.



The Airlift powered pond with a Drum filter
By Koi.Gin



After preparing the garden, the dry-suction system had to be placed.
This prevents groundwater seeping up during the build.

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The next photo shows the drilling of the holes where the suction lines will be placed.

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After that, these rods are placed into the ground.

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This all connects to this pump.

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Starting the digging on friday.

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The digger has done a great job considering the available space.
This was the result, by now it is saturday afternoon.

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Due to heavy rainfall, a temporary cover has to be built first. A job that takes a lot of time, but this is necessary for the following two days.
On sunday morning the PVC piping was placed in the pond.

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Gino's brother (Mario) and father in law are helping with the build.

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Here you can see the three drains coming together in what will be the sump pit.

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Mario built a concrete formwork that will serve two purposes.
Firstly, this will keep the pipes in place while pouring concrete.
Secondly, a deeper space is created which will become the sump pit.

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Meanwhile a lot of rain kept falling. Even with the dry-suction system working fine, the rain was too much. This sadly led to cave-ins.

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This was not all, the wall on the right on the last photo caved in as well...
This had to be fixed quickly as the concrete trucks were on their way.


Here you can see more of the cave-ins that happened over night, and how this was handled.
Now the rebar netting is placed.

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Meanwhile the concrete truck has arrived.

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Ready to pour the concrete.

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A total of 7 m³ of concrete has been poured in the pond. Later, another 3 m³ will be added for the filter area.

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Wednesday, august 18.
At 6:40 AM another big truck arrives.

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14 packs of concrete blocks have been delivered.


The bricklaying starts on the same day:

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Marc coming over to check on the progress:

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The result after the first day:

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The guys from Zen-Koi have done a good job.

Every block had to be moved to the pond floor by hand, the blocks could not be delivered directly to the pond.


The result after the second day of bricklaying:

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Another photo of the cave-in due to the rain.

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Continuing late into the evening.

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The pond takes shape:

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The next morning, concrete is added to the filter area.

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The next day the concrete formwork is taken off the sump pit.

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An Airliftcollector will be placed next to the sump pit.

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Meanwhile, the pond has been built up to the final height.
Later some plateaus will be created where boulders will be placed.
The returns into the pond have been fiberglassed beforehand.

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Before the edge of the pond can be finished, the skimmers have to be placed.
The following pictures show how the skimmers have been converted to 110mm.


The parts required are as follows:
A skimmer, a 160mm sock, and a 110 / 160 reducer.

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The skimmer is converted to 110mm.

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All rubber gaskets are removed and everything is glued together with Tangit All Pressure pvc glue.

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In this picture the skimmer has been installed.

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Continuing with building the filter:

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After that the edge can be worked on again.

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To be continued in the next update!
Pssymon
 
Posts: 85
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Joined: Fri 11 Dec 2015, 0:12:51
Location: The Netherlands

Re: Airlift powered pond with a Drum filter, by Koi.Gin

Postby Pssymon » Sat 08 Apr 2017, 0:33:09

Part two:


Before continuing the build, here you can see how the transits were made.
Three Airlift returns were made in total. Two 110mm returns and one 160mm return.
The pipes were cut at an angle, sanded and degreased. After that they were coated in a layer of g4.

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Mario helping out again.

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Now the Airlift collector will be put in place, It's quite a job.

Here you can see the collector, ready to be placed. The collector has a 400mm diameter and is 200cm long.

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And how would you place this two meters deep..

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Mario is satisfied with the result.

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The first part of the return is ready to be glued together.

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There is a two centimeter level difference between the return at the collector and the return at the pond, this is done to prevent airbubbles getting trapped.

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Now the outlets of the filter have to be connected to the collector.

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The result:

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The next photos show how the skimmers have been placed in the plateaus. Later, large boulders will be placed there as well.

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The Airlift returns, one 110mm and one 160mm.
The 160mm return will connect to the membrane disk-Airlift, which should give 28000 litres an hour.

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The next photo shows the layout of the pond next to the filter. The higher part of the filter will be camouflaged with boulders as well.

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The pond floor is being plastered:

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These pictures give a whole view:

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Here you can see the filter room being polyestered.

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This space will later be filled with K1 media (moving bed).

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Applying polyester and topcoat in these small spaces is a difficult job, with all these transits.

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The last filtercompartment has 3 transits, all 160mm. This is done to ensure enough flow to the collectors.

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The return on the left has already been connected to the 400mm collector.


A one meter deep trench makes it possible to place the 160mm pipes. The pipes are placed on top of eachother.

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Now a big hole to place the collectors is needed.
A hole of 100 x 70 x 230cm deep is needed, which is quite a big task.
After Gino's wife and brother had started digging, it was up to him to finish the dig:

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The filter returns are connected to the 160mm pipes.

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The 160mm pipes:

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In the next photo, the inlets have been connected to the collectors.

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One return has been connected to the pond, this return enters the pond at half depth.

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The result:

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Next, the returns and piping will be surrounded with stabilizing sand. After that, it will be filled up with soil.


Joey, from Zenkoi, has been busy and now the pond itself has been coated with polyester.

This is the result:

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Meanwhile another truck has arrived.

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And it's bringing the boulders needed for the edge of the pond.

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This one weighs in at over 1000kg.

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Some more:

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Also comes with a couple of wheelbarrows full of sand..

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When the truck arrived and dropped off all the boulders, there was a big problem. The boulders had to be placed by hand as it was impossible to use a small crane.
Luckily this was managed by placing multiplex plates in the garden which made it possible to use a pallet transporter to move them next to the pond.
The boulders had to be carefully placed, one by one, to prevent damage to the topcoat. Considering the weight of these boulders, this was a difficult job that took many hours.
After placing the boulders, they were sealed at the bottom with watertight concrete.

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Here you can see that Joey is removing the sharp edges from the boulders so the koi won't hurt themselves.
The skimmers have been hidden in the edge and are almost invisible.

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All credit goes to Joey and Patrick for finishing this tough job!


Here you can see the boulders pointed up, coated with primer, polyester and topcoat. (The part that will be submerged later.)

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The end is near.
Soon the pond will be ready to be filled!

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Finally the time has come to fill:

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Exactly 20 hours later the tap is closed again, at this point the pond is filled with 23000 litres of water. There was no point in filling it any further as there were some pipes that still had to be connected.


Some pictures when the pond was nearly fully filled later:

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Pssymon
 
Posts: 85
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Re: Airlift powered pond with a Drum filter, by Koi.Gin

Postby Frank » Mon 10 Apr 2017, 22:27:16

Well done! :P
Frank
 
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Re: Airlift powered pond with a Drum filter, by Koi.Gin

Postby scruffy.thedog » Fri 09 Jun 2017, 14:09:01

Koi.gin

How are you finding the drum and flow rates ...Is there a drop in flow as the drum has to be higher than the water level ?
which drum did you use?
how high is the drum above the pond?

Cheers

ian
scruffy.thedog
 
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Re: Airlift powered pond with a Drum filter, by Koi.Gin

Postby Pssymon » Sun 11 Jun 2017, 20:16:27

Hi Ian,

Gino is not a member on this site, just on the Belgian site.
I am translating his topic for this site. There is still much more to come as this is a very large and detailed build.
I will update here in the coming days, which will probably answer your questions, if not I can always contact Gino and ask him.

Greetings.
Pssymon
 
Posts: 85
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Joined: Fri 11 Dec 2015, 0:12:51
Location: The Netherlands


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