You need to check with your local water authority to see if your water contains chloramine or not.
Chlorine can be removed with a simple carbon filtration.
Chloramine CAN NOT be removed with carbon, even with a chloramine remover, the end result will be a small trace of ammonia.
You need to use a neutralizer such as prime or amquel.
To do this in the drip system, you will need an injector that mix the prime solutions with tap water.
I personally run the Dosmatic setup on mine becasue my local water source have both chlorine and chloramine. It drips 50 gallon per day on my 240