Seachem Prime

My own tap water tests at zero before I dechlorinate it but tests at 0.5 ppm after I dechlorinate.

How do you suggest that tap water that has no ammonia in it, i.e. reads zero, suddenly acquires 0.5ppm ammonia? Are you suggesting that the dechlorinator adds ammonia?

What test kit do you use?

Oldman has Chloramine. The prime breaks it down into it's components and then ammonia will become "visible".
 
My own tap water tests at zero before I dechlorinate it but tests at 0.5 ppm after I dechlorinate.

How do you suggest that tap water that has no ammonia in it, i.e. reads zero, suddenly acquires 0.5ppm ammonia? Are you suggesting that the dechlorinator adds ammonia?

What test kit do you use?

Oldman has Chloramine. The prime breaks it down into it's components and then ammonia will become "visible".

If he has chloramine then when testing his water without any dechlorinator added it will still give a reading for ammonia, e.g. 1ppm chloramine will give 1ppm ammonia reading, that's how ammonia test kits work. So I still can't see how it's possible. Unless he's got an old style nessler reagent test kit.
 
ok you've made me want to experiment now.
If you add dechlorinator and then test you read off immediately right?

No you have to allow the full 5 minutes (assuming API) otherwise the full colour will not develop.
 

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