building a venturi valve

[ccicle]

I have question, is it possible to make a venturi valve out of pvc fittings. if so what size pipe would I need for dolphin 800 pump?

thanks Chris :wink:

[phistio]

sure, it's possible, but in my opinion, it would be more cost efficient to use nylon tubing...

what's would be the reason to want a rigid venturi?

[ccicle]

Could you please explain nylon tubing for a venturi valve. I 'm not sure I understand what you mean by using nylon tubing. How do your get the air introduced into the valve.

Thanks for your reply.

Chris

[phistio]

the venturi is for a skimmer, yes? i'm just wondering why you would want to have a rigid PVC for air induction...a tube would do the same thing...

[ccicle]

Yes you mean use a tube to hook up the air to, but I'm talking about the body of the valve. If thats what your talking about I don't understand what you mean. Yes This is for a skimmer.

Thanks

Chris

[phistio]

first a few quick links for viewers to see the dolphin 800...

http://www.marineandreef.com/Info/Dolphin800perform.html

1" Hose Barb or 3/4" FPT inlet and a 3/4" Hose Barb or 1/2" FPT outlet

http://www.marineandreef.com/products/Dolphin_Tank_Master_Small.jpeg

(this is the 560..but nearly the same)

i don't see a problem with using PVC for the intake manifold...the only point i was bringing up is that to use PVC, the joints will have to be (or rather should be) sealed with "plumber's PVC glue" and i don't know if that stuff is "reef safe"...which is why i personally would just use 1" nulon flexible tubing. and it's my theory that it would be more cost effective (altough we're only talking about $10 difference...)

so, no, i don't think it would be a problem to have a rigid PVC plumbed for the intake, but personally i would just hang a piece of flexible tube, and bell housing out the back of the sump...but it makes no difference really.

does that help? :|

[ccicle]

phistio,

:D Sounds like a good Idea, if possible could you draw a diagram, just so we would be on the same page.

Thanks

Chris :wink: