"Coil Of tubing" Ozone "Reactor" Questions

[GreenSpottedPuffer]

I have heard from many people now that this is the best and least expensive way to go for injecting ozone. Long coil (50'-100') of silicone or HDPE tubing with a powerhead or pump with venturi feeding water and ozone in one end of the tubing and the water exiting the other into a PVC carbon canister and then back to the sump. Easy enough.

I have a few questions though anyways.

1. What kind of powerhead/pump would you use? Someone recommended a MAG 5 to me but others have said just a powerhead would be fine. Are most ozone safe though?
2. Do you think ozone will still leak a little from the venturi or powerhead "air intake" and need some carbon placed on it? In other words, how air tight are these fittings?
3. It I get a pump without a "airtake", where can I get a venturi fitting?


Is anyone here doing this and how is it working?

Thanks.