Does PH down not mix completely in a res? PH shoots down when pump kicks on.

iggy097

Well-Known Member
I've been noticing in my res - running Athena Blended - that my PH will not remain consistent when the pump kicks on. I have it set to 5 min on, 45 min off, and controlling using a Bluelab PH Controller.
This seems to happen when I'm using the Veg nutes mainly.
I'll notice the PH is 5.6-5.7 - and then the pump kicks on, the PH will drop to 5.4 or so, and when the pump turns off, slowly drift back up to where it was before the pump kicks on (in the matter of a few minutes).
Does PH down not mix with the water completely? Is it hanging out on the top/bottom of the tank?
Video example -
 

iggy097

Well-Known Member

tree beard

Well-Known Member

bk78

Well-Known Member
How big is the WaveMaker? You just set it on the bottom of the resevoir and that's it?
Mines mounted on the bottom facing up across my reservoir. The exact dimensions are in the link I posted but it’s pretty small for the churning it does.
 

tree beard

Well-Known Member
Mines mounted on the bottom facing up across my reservoir. The exact dimensions are in the link I posted but it’s pretty small for the churning it does.
Cool beans, I might just pick one of those up. Been using an aquarium pump that's loud AF. Thanks for the tip
 

nxsov180db

Well-Known Member
As the water moves by the probe it causes the reading to change, that's all.. once the water stops moving the true reading will show. Your PH isn't actually changing.
 
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Hollatchaboy

Well-Known Member
I feel like the true reading, is when the nutrient solution is circulating. No chance for a concentrated area to come into play. Just my opinion.
 
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