Ozone: How do you use it? What is stopping you?

[Sean Clark]

Hey all!

Can someone verify my apex ORP rule?

Fallback OFF
If ORP > 360 Then OFF
If ORP < 330 Then ON
If Output Return = OFF Then OFF
Defer 004:00 Then ON

For some reason I switch the toggle to auto and It does nothing.

Thank you!

I would add a skimmer off statement as well (assuming you are running it though your skimmer)

If Output Skimmer = OFF Then OFF

Here is my code:
Fallback OFF
Set ON
If PosORP > 350 Then OFF
If Output Skimmer = OFF Then OFF
Min Time 010:00 Then OFF
If Power Apex Off 002 Then OFF

 

[Clownreef]

Thank you,

Its set on auto and it doesn't turn on/off at the targets

Any ideas?

 

[Sean Clark]

Switch you high and low statements and set your defer to off like this.

Fallback OFF
If ORP < 330 Then ON
If ORP > 360 Then OFF
If Output Return = OFF Then OFF
Defer 004:00 Then OFF

 

[Clownreef]

Defer 004:00 Then OFF

Negative. It stays off. Very strange...

 

[Sean Clark]

I just pasted your original code into my Apex and my Oxone is currently "ON" with my ORP at 336. I'll let it run to ensure that it cycles properly. Your code should work. Very odd.

 

[Clownreef]

I just pasted your original code into my Apex and my Oxone is currently "ON" with my ORP at 336. I'll let it run to ensure that it cycles properly. Your code should work. Very odd.

Very..

Hmmm..

Thank you Sean!

 

[Sean Clark]

Negative. It stays off. Very strange...

I know this sounds silly but can you see your orp on your dashboard? The probe is "enabled"?

 

[Clownreef]

I know this sounds silly but can you see your orp on your dashboard? The probe is "enabled"?

haha sure is! I checked too..lol

 

[paintman]

I wonder if any of the people who are afraid of using ozone have ever checked their basement for radon .

 

[Clownreef]

I wonder if any of the people who are afraid of using ozone have ever checked their basement for radon .

…or their poo for nano plastics lol

 

[Randy Holmes-Farley]

I wonder if any of the people who are afraid of using ozone have ever checked their basement for radon .

Both concern me, but not enough to prevent me from using ozone properly.

I just spent more than $20,000 on radon issues, even with reasonably low levels (below EPA action level, but then again, not none before the mitigation).

 

[Sean Clark]

Both concern me, but not enough to prevent me from using ozone properly.

I just spent more than $20,000 on radon issues, even with reasonably low levels (below EPA action level, but then again, not none before the mitigation).

Do you have non-detectable levels now after your mitigation efforts? I went the ducted fan suction route but that was only $1,000.

 

[Randy Holmes-Farley]

Do you have non-detectable levels now after your mitigation efforts? I went the ducted fan suction route but that was only $1,000.

We use a digital test from airthings, and now apparently get levels not above outside background.

Our house is 220 years old and the barn/apartment is 100 years old, and both had full or part dirt basements in multiple disconnected rooms with brick walls in between,. Thus, more than half of the cost related to cementing these areas (much harder than when open for new construction) and we have 3 fans with 8 collection areas (plus one backup in case it was needed).

 

[Sean Clark]

Very..

Hmmm..

Thank you Sean!

OK, I tested your code and everything is working. I did change the <> values to a few mv apart to test it in a shorter amount to time but that should not have any impact on the operation. Your code should work fine.

Fallback OFF
If PosORP > 360 Then OFF
If PosORP < 330 Then ON
If Output Return_Pump = OFF Then OFF
Defer 004:00 Then ON

 

[Gp!]

The future belongs to the Tide Pod eaters.

My favorite on this topic: did you know in the late 60's trucks came with instructions on how to adjust valves - now they come with instructions not to drink the battery acid

 

[Clownreef]

OK, I tested your code and everything is working. I did change the <> values to a few mv apart to test it in a shorter amount to time but that should not have any impact on the operation. Your code should work fine.

Fallback OFF
If PosORP > 360 Then OFF
If PosORP < 330 Then ON
If Output Return_Pump = OFF Then OFF
Defer 004:00 Then ON

Thank you!!!!! Works perfectly now! Maybe there was some corrupt characters in there.

You da man!

 

[Clownreef]

Interested to know the ORP limits everybody is running their controllers on. Im 360 off 330 on on the #3 dial on my Poseidon 200

 

[gbroadbridge]

Interested to know the ORP limits everybody is running their controllers on. Im 360 off 330 on on the #3 dial on my Poseidon 200

I run 425 with +-25

 

[Sean Clark]

Interested to know the ORP limits everybody is running their controllers on. Im 360 off 330 on on the #3 dial on my Poseidon 200

I run mine at 350. I have played with higher and lower ranges. I think 350 is the sweet spot for me. I run my Poseidon 200 on #4 with 200 gallons.

 

[Randy Holmes-Farley]

Interested to know the ORP limits everybody is running their controllers on. Im 360 off 330 on on the #3 dial on my Poseidon 200

Here's my comment on that from one of my ORP articles:

So with all that background discussion behind us, here are my recommendations for ORP monitoring and ozone control in reef aquaria using a properly sized ozone generator that appears to be working, and a properly calibrated ORP meter:

1. If the ORP never seems to rise above 375 mV after initiating ozone, do not worry about controlling the ozone or the ORP. Just let it run full out. Also, do not worry about needing a larger generator, assuming it has driven up the ORP by at least 25 mV above where it was before adding ozone. It is likely accomplishing the necessary tasks (such as making the water clearer). Only if some other aspect of ozone use is unsatisfying (e.g., lack of water clarity) would I look for other options such as a larger ozone generator or a better contact chamber.

2. If the ORP starts above 375 mV, or rises there during ozone use, using an ORP controller would be valuable to prevent the ORP from rising too high. Use the controller to shut off the ozone when the ORP rises too high. Another option would be to shut off the air flow to save the dryer's media, but be sure that water cannot flow back into the ozone generator if the air stops. I would set the ORP target somewhat above the baseline ORP in the absence of ozone - at least 350 mV, maybe 400 mV, but never above 450 mV.

http://reefkeeping.com/issues/2006-04/rhf/index.php#17