Quote Originally Posted by bsfman
We're on a sewer, not a septic system so that's not the well water issue.

As far as the nitrites, 2ppm was the closest color match with the test kit. Frankly, I have trouble distinguishing the color difference half the time with those test kits and it's possible the ammonia was higher to start than 4 ppm and possible the nitrite was lower than 2ppm, but that's the way I read them at the times I tested. Both are definitely zero now.

Regardless, I was amazed the tank cycled completely in just over 4 days. My first system took nearly a month.
No, I mean you should have got far less than 20 ppm nitrAte... far less...