Sulphur denitrator not staying steady

AI Hydra

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
I’m trying to cycle a sulphur denitrator. I have the output dripping one drop every second to second and a half. The orp gets down to between -125 to -140 and goes back up to -90 every time. It’s done it four times already since I’ve had it set up. Is there anything I can do to stop that from happening? Any help would be greatly appreciated
 
Never Wash Another Nasty Filter Sock Again!

KrisReef

5000 Club Member
Review score
+0 /0 /-0
View Badges
Joined
May 15, 2018
Messages
6,443
Reaction score
18,630
Review score
+0 /0 /-0
Location
ADX Florence
My ignorance on the subject is close to -10, but I would presume that negative orp is on the correct side of the scale of the reactor is working? I’m not sure what the fluctuation in negative territory would indicate a distinction rather than that it is not faced with a steady workload during operations.
Eager to see what more informed folk have to say.
 
Tidal Gardens

Sean Clark

5000 Club Member
Review score
+0 /0 /-0
View Badges
Joined
May 16, 2019
Messages
5,100
Reaction score
17,678
Review score
+0 /0 /-0
Location
Michigan
When the nitrates are higher the ORP in the reactor will be higher. It has to do with the biological process. As the nitrates come down the ORP in the reactor will come down.

How long has it been back up and running at that flow rate?

Here you can see how my reactor ORP fluctuates with feedings and is inversely correlated with the ORP of the tank water.
NegORP is in the reactor
PosORP is the tank
Screenshot_20220527-164124_APEX Fusion.jpg

Edit: I forgot to include the feedings.
Screenshot_20220527-171442_APEX Fusion.jpg
 
Last edited:
OP
W

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
When the nitrates are higher the ORP in the reactor will be higher. It has to do with the biological process. As the nitrates come down the ORP in the reactor will come down.

How long has it been back up and running at that flow rate?

Here you can see how my reactor ORP fluctuates with feedings and is inversely correlated with the ORP of the tank water.
NegORP is in the reactor
PosORP is the tank
Screenshot_20220527-164124_APEX Fusion.jpg

Edit: I forgot to include the feedings.
Screenshot_20220527-171442_APEX Fusion.jpg
Thank you. Now I understand. I never thought to compare it to the orp of the tank
 

Attachments

  • 28F1E13E-AF6F-4479-BA73-E12B41457AB8.png
    28F1E13E-AF6F-4479-BA73-E12B41457AB8.png
    136.9 KB · Views: 5
Tidal Gardens
OP
W

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
What kind of feed pump are you using?
I’m running it off a manifold from my return pump. My return is a Cor20. I have the tee reduced down to 1/2” with a flow sensor. It says I’m running 5gph out of the manifold but then it’s down 1 drop every two seconds with a needle valve
 
OP
W

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
Great sounds like you have that covered well, the feed pump can be a source of frustration if not sorted correctly.
I think I’m on the right track. Last night the orp in the reactor got down to -170 for the first time and the effluent coming out of the reactor tested 0 nitrates so I upped the flow to 1 drop every second
 
www.dinkinsaquaticgardens.com
OP
W

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
ORP will constantly move around. Don’t try to chase it. Just try to find the range where it’s working and doesn’t get clogged and let it do it’s thing.
I got it now. The orp went up to -90 when I upped the flow to 1 drop a second and it’s already dropping and is back down to -110. I’m pretty sure I’m on the right track now
 
Koral King: Rare Corals for Sale
OP
W

wotis11

Community Member
Review score
+0 /0 /-0
View Badges
Joined
Nov 4, 2020
Messages
67
Reaction score
45
Review score
+0 /0 /-0
Location
Syracuse
Getting that flow is critical too much you wash away all that you wanted to slow and it is bad (rotten egg) smell. If that remove reactor and flush outside and restart.
I read that. I did a bunch of research about them before I implemented it on my tank. I just couldn’t find any info on why the orp kept dropping like that. But I’m on the right track now. I’m almost ready to up the flow on it again.
 
AI Hydra

How many different food items do you feed your fish?

  • Only one food

    Votes: 19 5.1%
  • 2 Foods

    Votes: 36 9.8%
  • 3 Foods

    Votes: 89 24.1%
  • 4 Foods

    Votes: 54 14.6%
  • 5+ Different Foods

    Votes: 133 36.0%
  • 10+ Different Foods

    Votes: 38 10.3%
The Random Flow Generator® Nozzle by VCA
Top