RO Water Readings

drew2005

drew2005

Active Member
What do you guys make of these ammonia readings?
Walmart RO 1 gallon jugs - .25 Ammonia
Newly made RO/DI from my unit - .25 Ammonia
Display tank - 0 Ammonia
I have been using the Walmart brand for over a year without any spikes in ammonia. Ive never tested the water before mixing it with salt. I just wanted to compare my newly made water with the Walmart one. What else are the necessary tests for my newly made RO/DI water?
 
klaramore

klaramore

New Member
if you are test right after you mix your salt you will get false readings. It take 24 hrs for the water cemistry to calm down.
 
drew2005

drew2005

Active Member
Originally Posted by klaramore
if you are test right after you mix your salt you will get false readings. It take 24 hrs for the water cemistry to calm down.
I never test right after. Im curious about the water readings before mixing salt.
 
drew2005

drew2005

Active Member
Anyone with any ideas? I gotta start filling up empty 1 gallon jugs and i need to do a water change this week.
 
rick58

rick58

Member
I am not sure I would trust your tests if both RO waters are testing positive for ammonia. I am not sure if an ammonia molecule is small enough to fit through an RO filter... it might be possible. I've never had RO water test positive for ammonia, so I'm skeptical.
 
drew2005

drew2005

Active Member
Ok thanks guys. This test kit is a year old. I guess its time for a new one. My nitrite is 0 and my nitrates are 5.
 
teen

teen

Active Member
Originally Posted by drew2005
One more question. Should i make up my saltwater mix and test it before i do the change?
i would test Ph, calcium, alk, temp, and salinity.
 
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