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| Affnan Siphon http://byap.backyardmagazines.com/forum/viewtopic.php?f=8&t=9139 |
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| Author: | Zman [ Feb 23rd, '11, 05:45 ] |
| Post subject: | Affnan Siphon |
Can i make this with the following. 1. 25mm bulkhead 2. 25-40mm adapter 3. 50mm pressure pipe 4. 80mm pressure pipe (anyone know where i can get 1m lengths of this or 100mm pressure pipe?) Will it work well or do i need to go for the bigger inner tube? |
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| Author: | Ian [ Feb 23rd, '11, 06:29 ] |
| Post subject: | Re: Affnan Siphon |
You could, but using a 25/40mm reducer on top of your siphon tube leaves very little clearnce in a 50mm bell pipe, which may constrict the flow and stop your siphon from working properly. I would use at least a 65 or 75mm diameter Bell tube for the required clearance to be safe, and then use at least a 100mm diameter media guard pipe. You don't really need pressure pipe for this application, stormwater pipe is just as effective and much cheaper and easier to get. Cheers IanK |
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| Author: | Decal [ Feb 23rd, '11, 19:10 ] |
| Post subject: | Re: Affnan Siphon |
Or you can use a plastic soft drink bottle for he bell. |
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| Author: | Zman [ Feb 23rd, '11, 19:18 ] |
| Post subject: | Re: Affnan Siphon |
Thanks Decal, i saw that video previously. Problem is what to hold back the media. I dont really want to use storm water pipe as i have pressure pipe for everything else. Been thinking about Affnan's brick idea but that would reduce the GB room a bit. |
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| Author: | Decal [ Feb 24th, '11, 05:50 ] |
| Post subject: | Re: Affnan Siphon |
You can use just about any thing to hold the media back with, plastic buckets with the bottom cut out is a good cheap option. Just need to think out side the box a little and look at things a little different. Good luck and look forward to seeing what you have come up with. In the video I have used a large bottle, I now mostly use the taller and thinner water bottles which fit better in the PVC pipes. 
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| Author: | bill newton [ Feb 24th, '11, 10:25 ] |
| Post subject: | Re: Affnan Siphon |
Keep It Simple Stupid!!!! carna pies!!!! 
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