trofius Posted December 11, 2005 Share Posted December 11, 2005 Hi all I am just about to do the air line thing around the fish room just wondering what othere have done. I have a lp-90 airpump, and will be running maybe 30-40 airstones (i know the pump is way big enough.) I was thinking 20mm pvc with screw in barbs then silicone tube down into the tanks, all up about $100 in materials. I was thinking pvc because pvc is self ridgid/self supporting, and will have to cross over the room above head height, about 2.8m span, will also support a power lead I was considering the black irrigation stuff, due to wase of working with, and cheaper but hmmm not sure Are dead ends a bad thing or should it all flow The pump will sit on the top shelf in middle, so, I was going to have it go down between the two main racks and tee off at each shelf, ending in dead ends. the top line would have a tee also to cross the room to the other two rack. any suggestions Ed: to make it easier to read and understand. Link to comment Share on other sites More sharing options...
rosco Posted December 12, 2005 Share Posted December 12, 2005 Hi there trophius, I have used the 19mm black irragation stuff and I wish I had of used pvc. I use an LP 60 and run 30 airstones of that. I am going to run second line around the room that is on a separate circuit breaker and I will proabably use PVC for that. I would run it around the whole room in circuit saves dead ends. Costs more but it is a better way of doing it IMHO. WIth PVC all you have to do is get a 4mm drill bit and drill the holes you need for the air stones and use those 3.5-4mm (I think)black irrigation bits and it is all good. cheer rosco Link to comment Share on other sites More sharing options...
trofius Posted December 12, 2005 Author Share Posted December 12, 2005 Thanks for that, I am not sure how i would go about runnning a circut. I have two 3 tier racks on one side of the single garage/fishroom. And two, 2 tier racks on the other side, and didnt want heaps of lengths running from one side to the other, all racks are 1900 long As the pump fairly cranks, (for possible future expansion) will i need to have a bleed off somewere? Link to comment Share on other sites More sharing options...
Josh Posted December 13, 2005 Share Posted December 13, 2005 Run a full loop around the room with a tee behind each rack then run a drop (from the tee) down the wall, drill and tap your fitting into the drop. I have finished my room tonight and will post up pictures by the end of the week, if you want a look Josh Link to comment Share on other sites More sharing options...
ViS Posted December 13, 2005 Share Posted December 13, 2005 I'm planning on using electrical conduit instead of pressure pvc for my air circuit. Anyone see a problem with that? Good idea about the "T" junctions Josh , Should make it look much neater. Link to comment Share on other sites More sharing options...
wui39 Posted December 13, 2005 Share Posted December 13, 2005 Electrical conduit is just as good, just make sure that all possible areas of air leakage are siliconed well. Link to comment Share on other sites More sharing options...
Josh Posted December 14, 2005 Share Posted December 14, 2005 Andy Becarefull using using conduit as sometimes you can only get 90 degree bends and Tee's with inspection covers and they need to be sealed so that the air doesnt leak under presure. I cant take credit for the Tee's. My air system is based on Matthews idea's. I am just a copy cat Josh Link to comment Share on other sites More sharing options...
WAZ Posted December 14, 2005 Share Posted December 14, 2005 Wui39 Electrical conduit is not as good as PVC - it will go hard and very brittle over time. Also never silicone the joints - make sure you glue each of the joints. Littleswimmer - Murphy?? Very good observation about the electrical tee's too Josh Link to comment Share on other sites More sharing options...
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