Have you tested your tap water for Chloramine?
Your LFS should test it for free for you.
But that's something to look into...
Your LFS should test it for free for you.
But that's something to look into...
I fill it with tap water (not RO/DI, unfortunately)
using tap water and dechlorinator..
I suspect you may actually be seeing the effects of chloramine.
what dechlorinator are you using?
some will break the chlorine ammonia bond and bind H to NH3 turning it into the less toxic ammonium NH4
most test kits test for total ammonia (NH3+NH4) you may actually be seeing the NH4
you can find out by testing specifically for ammonia NH3..the difference in the readings will be NH4.(total - NH3= NH4)
Just a hunch
using tap water and dechlorinator..
some will break the chlorine ammonia bond and bind H to NH3 turning it into the less toxic ammonium NH4