OZ418R Recirculating Ozone Reactor GEN2 - Attaching To UV

[nyknicks2544]

I am working to set up a OZ418R that I just purchased. I am curious about the difference between the carbon block and UV.

The flow rate for the reactor is only 125gph but my UV recommends something higher. I am running a 57 watt sterilizer on a 150 gallons of total water volume. I believe for parasite control (not water clarity) I should be running my UV at around 400gph. How can I run these two together? It seems like the flow rate for the reactor is so low that no one could run a UV unless its sole purpose was to support the ozone reactor as 125gph is really not enough flow for most UVs supporting water volumes of 100g+?

I had originally purchased it with the idea that I would just run the carbon block. Do I need to run the carbon block w/ the UV?

 

[geo Verified Sponsor]

All that is needed is that the water coming out of the reactor eventually goes through the UV before getting to the aquarium. The sooner the better but the OZ418R pulls out most of the ozone gas and is filtered through the carbon block. So if you’re referring to this carbon block for the gas then yes you must use it. What is left over is residual ozone in the water column and that needs to be neutralized by the UV. At 57 watts and 400 gph you will be fine.

No, in this case you do not need a carbon reactor such as our UMC415OZ. This is not to be confused with the carbon block for filtering the gas part being removed by the water, gas separator.

Thank you
GEO

 

[nyknicks2544]

All that is needed is that the water coming out of the reactor eventually goes through the UV before getting to the aquarium. The sooner the better but the OZ418R pulls out most of the ozone gas and is filtered through the carbon block. So if you’re referring to this carbon block for the gas then yes you must use it. What is left over is residual ozone in the water column and that needs to be neutralized by the UV. At 57 watts and 400 gph you will be fine.

No, in this case you do not need a carbon reactor such as our UMC415OZ. This is not to be confused with the carbon block for filtering the gas part being removed by the water, gas separator.

Thank you
GEO

Thank you! Do I just increase the feed pump I purchased with the unit to 400 gph and plumb my UV directly into the outlet of the reactor?

 

[geo Verified Sponsor]

Thank you! Do I just increase the feed pump I purchased with the unit to 400 gph and plumb my UV directly into the outlet of the reactor?

The feed pump has a “SET” speed designed specifically for the OZ418R so you cannot increase it nor should you try to. Please read above - the UV plumbing has been addressed.

Thank you
GEO

 

[nyknicks2544]

The feed pump has a “SET” speed designed specifically for the OZ418R so you cannot increase it nor should you try to. Please read above - the UV plumbing has been addressed.

Thank you
GEO

Apologies for being a bit dense! Can you confirm from the pictures below that this is how to plumb the output into my UV. I have the black output tube coming out from the reactor and then the output of this tube is put right in front of my pump that goes to my UV. Is this how to set it up? Thanks again! I’m newer to setting this stuff up.

 

[geo Verified Sponsor]

Hello, remove the black silicone tubing from the reactor output valve and let water go directly in sump. Let the water freely empty from the reactor into the sump water. Eventually the reactor output water will make it to your return pump and on through your UV.

The way you have plumbed it with the black tubing will cause a back up in the water/gas separator tube and not allow the reactor to operate correctly. Plumbing of the output needs to be all downhill. For more detail please refer to the manual.

Thank you
GEO

 

[DarkOasis10]

Hello, remove the black silicone tubing from the reactor output valve and let water go directly in sump. Let the water freely empty from the reactor into the sump water. Eventually the reactor output water will make it to your return pump and on through your UV.

The way you have plumbed it with the black tubing will cause a back up in the water/gas separator tube and not allow the reactor to operate correctly. Plumbing of the output needs to be all downhill. For more detail please refer to the manual.

Thank you
GEO

Hi Geo, I also have one of these units and have never been able to figure it out really. First I had it outside of the sump running water lines over the edge of the sump. I understand that this could cause issues and so I built a little stand to raise it up to the level suggested in the manual. It always had water exiting the air separation line and so I removed the carbon block as it only runs for 1hr each night when no one is at our office.

I have had the unit for 6+ months and decided I wanted to get it to function as intended and saw that the OP placed it in the sump. So I attempted that and I still am having issues with the gas air separation line always having water in it.

Excuse the messy lines I just moved it into the sump and had to half heartedly redo a bunch of wiring etc.

I am definitely doing something incorrectly. Even when I place the air separator line skyward above the unit water will come out.

Any tips?

Thank you Geo

 

[DarkOasis10]

Hello, remove the black silicone tubing from the reactor output valve and let water go directly in sump. Let the water freely empty from the reactor into the sump water. Eventually the reactor output water will make it to your return pump and on through your UV.

The way you have plumbed it with the black tubing will cause a back up in the water/gas separator tube and not allow the reactor to operate correctly. Plumbing of the output needs to be all downhill. For more detail please refer to the manual.

Thank you
GEO

Hi Geo, I also have one of these units and have never been able to figure it out really. First I had it outside of the sump running water lines over the edge of the sump. I understand that this could cause issues and so I built a little stand to raise it up to the level suggested in the manual. It always had water exiting the air separation line and so I removed the carbon block as it only runs for 1hr each night when no one is at our office.

I have had the unit for 6+ months and decided I wanted to get it to function as intended and saw that the OP placed it in the sump. So I attempted that and I still am having issues with the gas air separation line always having water in it.

Excuse the messy lines I just moved it into the sump and had to half heartedly redo a bunch of wiring etc.

 

[geo Verified Sponsor]

Hi Geo, I also have one of these units and have never been able to figure it out really. First I had it outside of the sump running water lines over the edge of the sump. I understand that this could cause issues and so I built a little stand to raise it up to the level suggested in the manual. It always had water exiting the air separation line and so I removed the carbon block as it only runs for 1hr each night when no one is at our office.

I have had the unit for 6+ months and decided I wanted to get it to function as intended and saw that the OP placed it in the sump. So I attempted that and I still am having issues with the gas air separation line always having water in it.

Excuse the messy lines I just moved it into the sump and had to half heartedly redo a bunch of wiring etc.

Hello the installation looks clean great job. There are two things to try individually.
1. Raising the reactor slightly so that the output valve is just above the water line. 2. Use the blue valve just after the feed pump to slightly slow down the input water. The water coming in maybe to powerful not equal to the existing water. This is causing a back up in the reactor.

Let me know if this works. I’ll be traveling this month so email with questions. [email protected]

 

[mstgkillr]

I've had one of these units for over a year now and still haven't been able to get it dialed in. I spent the first six months or so trying to get it running consistently, but eventually got frustrated and put it in storage. I recently decided to give it another shot and have started troubleshooting again.

I'm curious if @nyknicks2544 or @DarkOasis10 ever managed to get theirs running properly. If so, would you mind sharing your settings, particularly the recirculation pump speed, sump water level, ozone generator run schedule, and anything else you found helpful? One of my biggest challenges has been keeping the air/water separator operating consistently.

I also noticed that the unit is no longer listed on the manufacturer's website. Has it been discontinued, or is there possibly a revised version in the works?