Search found 164 matches

by Pssymon
25 Nov 2020, 17:02
Forum: Technical discussion
Topic: Multiple AL 7m from pond + discharge 40cm below water level
Replies: 2
Views: 46

Re: Multiple AL 7m from pond + discharge 40cm below water level

Hey SLK,

Thanks for sharing, looks really interesting.
I had a quick look but I'll leave a proper reply later when I have time.
Your setup looks great!
by Pssymon
22 Oct 2020, 22:38
Forum: Pond construction
Topic: Pond Planning 2022
Replies: 2
Views: 173

Re: Pond Planning 2022

Hey Frank,

Sorry for the late reply, I've been swamped with work.
Looks amazing! Which fish will you be keeping in it?

You will run a self-built airlift in it I presume? A membrane disk airlift?
by Pssymon
03 Oct 2020, 21:44
Forum: Parts
Topic: Good pump and attachment?
Replies: 4
Views: 215

Re: Good pump and attachment?

Good luck with it. My remaining tip would be, if you really have to lift 30cm with the airlift, try to use a smaller diameter rising pipe. This will hurt your maximum output but using our standard model for 30cm discharge head situations will probably give you no output at all. If you have any furth...
by Pssymon
30 Sep 2020, 20:43
Forum: Parts
Topic: Good pump and attachment?
Replies: 4
Views: 215

Re: Good pump and attachment?

Good day, I have seen the brand before, but I have no personal experience with these pumps. Good results have been achieved with Secoh pumps. The older model, the SLL-20 for example. I believe they recently became available again. Alternatively I would personally go with a Secoh JDK-30, or bigger de...
by Pssymon
30 Sep 2020, 20:34
Forum: General Airlift information
Topic: Can an airlift lift water above water level?
Replies: 2
Views: 427

Re: Can an airlift lift water above water level?

Hello, You can, but at that point it will no longer be efficient at all. In this scenario I would advise a normal water pump. See this video for reference: https://www.youtube.com/watch?v=o9OgVnuhCpg Discharge head has to be lower than 10cm in my opinion, for any practical use. With any discharge he...
by Pssymon
19 Aug 2020, 21:58
Forum: Filtration
Topic: Introduction to the Crielsieve, a revolutionary pre-filter!
Replies: 7
Views: 2327

Re: Introduction to the Crielsieve, a revolutionary pre-filter!

Hi Richard,

I will contact you through PM.
Greetings.
by Pssymon
19 Aug 2020, 21:55
Forum: Technical discussion
Topic: Airlift Manifold Design
Replies: 1
Views: 371

Re: Airlift Manifold Design

Hi, Sounds like a great idea. I have some suggestions for sure. My question is, do you have any way to test flowrates? Designing pressure chambers or membrane disk/shower head designs is only really worthwhile if we can test or compare the results. In case you are eager to get started, I can give yo...
by Pssymon
31 Jul 2020, 14:27
Forum: General Airlift information
Topic: Gravitational filters, bottom drains and Airlift placement
Replies: 4
Views: 5105

Re: Gravitational filters, bottom drains and Airlift placement

Hi Giles, Using bottom drains gives a huge advantage. I am currently running a pond and two pools without them and it's a big hassle. Using bottom drains eliminates the risk of blockage and a drain is much more efficient in pulling in debris in a 360 degree radius. When using airlift, remember that ...
by Pssymon
31 Jul 2020, 13:36
Forum: Pond construction
Topic: Water storage Portugal- a few questions
Replies: 2
Views: 420

Re: Water storage Portugal- a few questions

Hi Chris, I understand your idea and it makes sense. The water source is extremely useful as it can negate the need for a filter as you say. Your idea for keeping the floor clean sounds feasible, but I'm not sure about the pressure you stated. That is not my area of expertise, but as Frank said, are...
by Pssymon
01 Jul 2020, 16:12
Forum: Technical discussion
Topic: Hole size and bubble size.
Replies: 1
Views: 498

Re: Hole size and bubble size.

Hi, I would advise to use 1mm holes. Usually it's recommended to clean the holes once a year to prevent blockage. Your issue may also be caused by the fact that the airlift does not run constantly. Causing the holes to gather particles, algae, insect eggs and so on during the downtime. I would sugge...
by Pssymon
15 May 2020, 19:50
Forum: Technical discussion
Topic: Airlift straight from BIO CHAMBER
Replies: 3
Views: 813

Re: Airlift straight from BIO CHAMBER

50cm sounds very reasonable. I can't say for sure as this is a very specific application. But I believe I have seen similar setups work with a smaller screens just fine. I would expect this to be more than enough.
by Pssymon
27 Apr 2020, 22:44
Forum: Technical discussion
Topic: airlifting model for wastewater sludge
Replies: 1
Views: 762

Re: airlifting model for wastewater sludge

Hi Rita, Apologies for missing this thread. I understand what you are trying to do. However 50cm is still a massive discharge head. A 25W air pump will never be able to provide enough lift to get there. A 110mm rising tube will also be much too large. To give you a rough estimate (I have not done te...
by Pssymon
27 Apr 2020, 22:36
Forum: Technical discussion
Topic: Airlift pump calculation
Replies: 15
Views: 3679

Re: Airlift pump calculation

Hi Vanvu, Sadly I cannot run tests yet. I can't make promises at this point, but am hopeful this will be possible later this year. I can tell you that lifting one meter is going to be highly inefficient. Your required flow rate of 60m3/h is really high as well. I do not think this is a realistic goa...
by Pssymon
05 Apr 2020, 14:48
Forum: Technical discussion
Topic: Airlift straight from BIO CHAMBER
Replies: 3
Views: 813

Re: Airlift straight from BIO CHAMBER

Hi slk, I think both options will work fine. I would pick depending on how you could fit the Airlift the easiest. Make sure you don't lose too much height by fitting that screen under the Airlift. It should still ideally be around 170cm long. It depends on how deep your bio chamber is so you can sti...