Huge ORP drop on a Dime

[rob safron]

Per the title my ORP normally at a regular pattern plummeted at 1 am last night. All my animals accounted for. Didn’t see any change in pH in relation to that drop. Any thoughts? Out of town so I can’t run any tests but my dosers appear to be working fine.

 

[coral-boss]

following. mine also does this

 

[coral-boss]

is your ATO fill line anywhere near the probe?

 

[rob safron]

No. I fill into the return section and based on my Apex sensors the water levels never went low or high.

 

[coral-boss]

hopefully someone can chime in

 

[rob safron]

Been at this a while, usually only happens after a water change. Not really worried about the exact level more interested in why the large drop.

 

[coral-boss]

yeh I never really worried about it to much, but would like to know as to why. it just happens randomly to mine. no real reasoning. probably a few times a week I notice the sharp turn down.

 

[ChadmRoman]

Mine drops like this once everyday around 4-5 am. Not really sure what's making this happen. Water level stays constant from running my ATO every 90 minutes. I would like to know why it does this as well.

 

[Randy Holmes-Farley Verified Community Expert]

Unless you added a very low ORP additive at exactly that time (say, ferrous iron), the effect is electrical interference.

 

[ChadmRoman]

Randy thanks for the reply. I forgot I started adding prime which is causing the drop.

 

[Randy Holmes-Farley Verified Community Expert]

Prime will certainly spike down ORP.

 

[coral-boss]

Ahhhh prime. Me to. Thanks randy