The Koi Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.
The Koi Forum

The place where koi hobbyist's and dealers meet
 
HomeHome  PortalPortal  SearchSearch  Latest imagesLatest images  RegisterRegister  Log in  
Search
 
 

Display results as :
 
Rechercher Advanced Search
Keywords
western pond cape show dealers bubble filter electricity baytril food SPOTS babies white plants skin foam salt pumps growth Dimilin shape 2011 face Bead plant dropsy
Latest topics
» New member, hallo everyone
DIY Venturi EmptyWed Jun 15, 2022 8:35 am by avisagie

» Waterfall Quiet Air Pump LP-60
DIY Venturi EmptyThu Mar 24, 2022 10:34 am by Ronnie

» Super Acto Flo Moving Bed Bio Media
DIY Venturi EmptyThu Mar 24, 2022 10:28 am by Ronnie

» Concerns about koi pond lining
DIY Venturi EmptySun Oct 17, 2021 12:16 pm by radley

» Nuwe dam
DIY Venturi EmptySat Mar 21, 2020 7:22 am by Bertus

» Help! What do o do with fry??
DIY Venturi EmptySat Jun 01, 2019 2:34 am by Zombolina

» A magical Japanese garden
DIY Venturi EmptyFri May 24, 2019 1:45 pm by atb tv

» Nogyosai Nagaoka koi show 2018 The vats part 2
DIY Venturi EmptySun Nov 25, 2018 12:52 pm by atb tv

» Nogyosai Nagaoka koi show 2018 the vats part 1
DIY Venturi EmptySun Nov 25, 2018 11:58 am by atb tv

March 2024
MonTueWedThuFriSatSun
    123
45678910
11121314151617
18192021222324
25262728293031
CalendarCalendar
Affiliates
free forum


Share
 

 DIY Venturi

View previous topic View next topic Go down 
AuthorMessage
Adi

Adi

Posts : 297
Reputation : 0
Join date : 2009-10-13
Age : 51
Location : Midrand Gauteng

DIY Venturi Empty
PostSubject: DIY Venturi   DIY Venturi EmptyMon Nov 02, 2009 9:29 am

With a 25mm reducer and a piece of irregation pipe my venturi works wonderfull and cost only R30 in material. Any interst? If yes will post some pics and a materials list.
Back to top Go down
Haggers



Posts : 30
Reputation : 0
Join date : 2009-10-16

DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi EmptyMon Nov 02, 2009 9:39 am

Adi wrote:
With a 25mm reducer and a piece of irregation pipe my venturi works wonderfull and cost only R30 in material. Any interst? If yes will post some pics and a materials list.

Please do so, thanks.

Haggers
Back to top Go down
Guest
Guest



DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi EmptyMon Nov 02, 2009 10:34 am

Hi,

A venturi is not good for your Koi!
Back to top Go down
Adi

Adi

Posts : 297
Reputation : 0
Join date : 2009-10-13
Age : 51
Location : Midrand Gauteng

DIY Venturi Empty
PostSubject: Why   DIY Venturi EmptyMon Nov 02, 2009 10:56 am

Why would th venturi, getting lots of oxygen into the water not be good? You see them on all ponds. Can you maybe explain why they are not good?
Back to top Go down
Guest
Guest



DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi EmptyTue Nov 03, 2009 3:31 pm

Back to top Go down
Adi

Adi

Posts : 297
Reputation : 0
Join date : 2009-10-13
Age : 51
Location : Midrand Gauteng

DIY Venturi Empty
PostSubject: Interesting point   DIY Venturi EmptyTue Nov 03, 2009 3:55 pm

Would the size of the pond not also play a role?
Back to top Go down
Guest
Guest



DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi EmptyTue Nov 03, 2009 4:56 pm

No matter how big the pond is!

It is about this;
Chris Neaves................................
Quote :

We are always told a venturi dissolves OXYGEN into water. This is not entirely true. The atmosphere is around 80% nitrogen, 18 - 19% oxygen and 1 - 2% other minor gasses. A venturi pushes air into the water under pressure - not only oxygen.


Dry air contains roughly (by volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases. Air also contains a variable amount of water vapor, on average around 1%.

When using a venturi these gases are blown into the water by an extreme force.
This result in that the “dangerous gasses” stay in the water for quite a long time, is then taken up through the gills of the fish when the fish gather oxygen from the water.

This then leads to stress and other diseases.

When making us of a venturi, it is best to lift in out of the water, above the water line, this will help the gasses to escape before it enters the water.
Back to top Go down
Adi

Adi

Posts : 297
Reputation : 0
Join date : 2009-10-13
Age : 51
Location : Midrand Gauteng

DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi EmptyMon Nov 16, 2009 3:23 pm

ok, here is some picture as well as what I did. The nice part, you can regulate the air flow, and can switch it off completely too, and all this for not even R30....this is what u need.
2x 50mm tread to pipe fitting
2x 50mm reducer to 25mm
1x 25mm threaded connector
1x small piece irregation tube
1x irregation valve for the top

Here is what I did:
connect all pieces together, then drill a hole the size of your irregation tube just off centre in the 25mm threaded connector. Make a V cut at the bottom of the irregation tube, glue the tube in place, and the valve and it works!

DIY Venturi IMAG0024

DIY Venturi IMAG0023
Back to top Go down
Sponsored content




DIY Venturi Empty
PostSubject: Re: DIY Venturi   DIY Venturi Empty

Back to top Go down
 

DIY Venturi

View previous topic View next topic Back to top 
Page 1 of 1

 Similar topics

-
» Rebuilding my pond
» Ripple effect of waterfall and Venturi

Permissions in this forum:You cannot reply to topics in this forum
The Koi Forum :: Ponds and equipment :: Equipment-