Search found 154 matches

by Pssymon
25 Jul 2019, 01:23
Forum: Technical discussion
Topic: EPDM tube diffusers
Replies: 25
Views: 4985

Re: EPDM tube diffusers

I'll get back to this topic asap. I've been reading but I want to give a proper response. It's easy to make mistakes with a quick reply.
by Pssymon
25 Jul 2019, 01:19
Forum: General chat
Topic: Away for a couple more days
Replies: 2
Views: 2473

Re: Away for a couple more days

Hi Ted,

I was in Vancouver, but also traveled on Vancouver island for a couple of days. It was quite the culture shock for a Dutch guy like me, I had never been to Canada or the US before. It was very interesting though. :D
by Pssymon
20 Jul 2019, 21:12
Forum: Technical discussion
Topic: EPDM tube diffusers
Replies: 25
Views: 4985

Re: EPDM tube diffusers

I agree with Frank. What kind of flow are you looking for? Pressure chamber Airlifts can deliver up to 15000 or 20000 liters per hour. And may be the better / easier option for you. To quote what I wrote elsewhere on the forum: " The membrane disk Airlift Another type of Airlift that some people lik...
by Pssymon
20 Jul 2019, 18:54
Forum: Technical discussion
Topic: EPDM tube diffusers
Replies: 25
Views: 4985

Re: EPDM tube diffusers

Hi, There is a topic on the Belgian forum about building membrane disk Airlifts I believe. I will look for it and put up a translation here if possible. The reducers at the size you mention can be difficult to find and expensive. Which is why members on the Belgian forum have made reducers using fib...
by Pssymon
20 Jul 2019, 18:49
Forum: Introduce yourself
Topic: Hello
Replies: 1
Views: 1496

Re: Hello

Hi Manu,

Welcome! Could you share some pictures of your build?
Greetings!
by Pssymon
18 Jun 2019, 21:16
Forum: Technical discussion
Topic: Airlift outlet depth
Replies: 12
Views: 2877

Re: Airlift outlet depth

For good efficiency the airlift manifold needs 160 to 180 cm riser pipe length and submersion. In your diagram the riser tube from the manifold is short and submersion is wasted on the very long vents. I asked Marc as well, and he confirmed this. Now that I think about it again it makes absolute se...
by Pssymon
08 Jun 2019, 00:37
Forum: Your pond
Topic: Franks pond 2018
Replies: 7
Views: 2006

Re: Franks pond 2018

Hello, 12 Watt for 20000 l/h is without any filter activity possible! Yes that's what I meant. In real life you will always have losses. The trick is to minimise your losses. As soon as you have bottom drains you loose 2-3 cm, How many bottom drains do you have connected to the Airlift? additionall...
by Pssymon
02 Jun 2019, 04:08
Forum: Your pond
Topic: Franks pond 2018
Replies: 7
Views: 2006

Re: Franks pond 2018

Hey Frank, In absolute perfect conditions you could get up to 20.000 litres an hour with one Airlift running at 12W. So that would mean 65000 / 20000 = 3,25 3,25 x 12W would give a theoretical maximum efficiency of 39W for that output, however, you can't run 3,25 Airlifts of course, so this is very ...
by Pssymon
02 Jun 2019, 03:57
Forum: Technical discussion
Topic: Airlift outlet depth
Replies: 12
Views: 2877

Re: Airlift outlet depth

I thought I sent Marc a PM about this, he usually knows. But It seems like something went wrong on my end. I sent him another PM. I'm not 100% sure what the best course of action is here, hopefully he can give some insights.
by Pssymon
02 Jun 2019, 03:50
Forum: Questions about the forum
Topic: How do you post images?
Replies: 1
Views: 1572

Re: How do you post images?

Hi, there seems to be a problem with this function. I will ask our webmaster again, it works fine for me but other users seem to have problems. I just tried it again. If you have your image hosted somewhere, just take the BBCode and paste it here, it should work. Alternatively, go to 'Gallery' next ...
by Pssymon
25 May 2019, 19:26
Forum: General chat
Topic: Away for a couple more days
Replies: 2
Views: 2473

Away for a couple more days

Hi,

Since there is some forum activity I am posting this anyway. I am (and have been) in Canada for 9 days. I really don't have time to reply to topics right now. I will be back on tuesday the 28th.

Apologies for the inconvenience!
Have a good day,

Roy
by Pssymon
15 May 2019, 23:48
Forum: Technical discussion
Topic: Airlift outlet depth
Replies: 12
Views: 2877

Re: Airlift outlet depth

Hello,

That's an interesting setup, thank you for the drawing.
I believe it will work, I can't say anything about the efficiency though.
I will ask Marc to have a look at your design.
by Pssymon
15 May 2019, 23:43
Forum: Pond construction
Topic: airlift in swimming pond
Replies: 7
Views: 1479

Re: airlift in swimming pond

I tried increasing the file size limit, but it does not seem to work. I've asked the webmaster, hopefully he can fix this. I will reply as soon as this issue has been resolved. Apologies for the inconvenience, very odd indeed.
by Pssymon
11 May 2019, 14:38
Forum: Pond construction
Topic: airlift in swimming pond
Replies: 7
Views: 1479

Re: airlift in swimming pond

Figured it out, you can use the gallery function, next to your username in the top right of the site. Here you can create an album, upload images and simply share them with the BBCode for example.

When I paste this: '[image]54996-[/image]', it embeds:

54996
by Pssymon
11 May 2019, 14:28
Forum: Pond construction
Topic: airlift in swimming pond
Replies: 7
Views: 1479

Re: airlift in swimming pond

Hello Werner and welcome, Looks like I missed your post, apologies. Your plan looks good. I agree with most of your points. Seeing the sketch would help a great deal. I host my images on Flickr, then share the BBCode link here (without image tags) and it will work: https://live.staticflickr.com/1822...