Ozone Reactor Questions

[JohnS_323]

From a DIY standpoint, I have a couple of questions: 1) If I use a recirc pump, what would be better, something like a Mag 7 or a Mag 2? I'm not sure if you want a lot of recirculation or a little. 2) How much flow should be coming out of the efluent line? A drip/slow stream like Ca reactor, or a steady/heavy flow?

My thinking is that I would use a Mag2 to recirc, and a very small Maxi Jet (400 or 600) to feed the system, so that I have a light flow out of the reactor. Does that sound right?

Also, where should my ORP be? and how will the ozone impact that number (make it higher or lower)?

Thanks a lot for all of the info so far!

 

[steve68]

No recirc pump is needed john, the way the reactor works is water is fed through the top along with the ozone & as it makes it's way down the reactor it mixes in the bio media then it exits through the bottom & out to the carbon media.
all u need is a pump that will have about 700 to 800 GPH as it comes in to the top of the chamber, i use a quietone 4000.
when i hooked up my ORP it was 315 i keep it at 365.
u want ur orp to be around 360 to 375 some people run it at 400 & i just think ur looking for problems when u go up that high.
i also clean my ORP probe every week all i do is soak it in vinegar for 10 minutes & then flush it with a litte DI water & back in the tank.

 

[JohnS_323]

Great! Thanks Steve. I'll give that a shot and let you know how I make out.

 

[JohnS_323]

One More Question: I have the reactor built pretty much like the drawing above (except without the recirc loop) and it all seems to run really well. The only thing is I don't have the ozone hooked into it. My question is this: How do I tie in the ozone? The hose that came with the generator is an odd size. I planned on using either a 1/4" or 3/8" JG fitting, but it's too small for one and too large for the other. My only guess is that it must just go over a small barbed fitting. Do they sell a really small barbed fitting that will screw into a 3/4" NPT fitting?

Any info on how your ozone attaches to the generator is appreciated. TIA!

 

[steve68]

try mcmaster under find products search for 127 & it should bring up all the Barbed Tube Fittings.

 

[JohnS_323]

Well Steve, that got me to the right church, now I need to know which pew! What material is compatible with O3? Nylon, Polypropylene, PVDF, or Brass?

Thanks for the info so far.

 

[steve68]

Polypropylene

 

[JohnS_323]

Well, I've got the reator pretty much up and running (just waiting on a check valve and air dryer). The one thing I noticed is that I needed to put a ball valve on the drain line because without it I wasn't able to maintain any water level inside the chamber. With the ball valve, I can control how high up I keep the level. I've been running it with the water about 4-6" up from the bottom. Even with this water level, I still get bubbles out of my carbon filter. Is this normal or do I have something out of balance? Either not enough water flow? Not enough resonance time? Too much ozone?

I'm getting close and will hopefully be able to put a fork in this thread soon! As always, any input is appreciated.

 

[steve68]

John since u are using a pressure pump with bio balls im guessing that is where ur bubbles are coming from, as long as they are not getting back in ur tank i woulnt worry about it.