Seriously MDP, What test kit do you have?
You should be using either the TF-100 or the K-2006. I suspect that you have maybe a K-2005, which is NOT the same as the K-2006, no matter what the pool store told you.
You seriously need the FAS-DPD chlorine test, NOT the DPD pill.
You should be using either the TF-100 or the K-2006. I suspect that you have maybe a K-2005, which is NOT the same as the K-2006, no matter what the pool store told you.
You seriously need the FAS-DPD chlorine test, NOT the DPD pill.