I'm using bromine (Brilliance brand, it it even matters), and I intend to switch to dichlor at my next water change- Maybe in another month to 6 weeks. Earlier if the weather warms up enough.
Anyway, I might run out of bromine before that, maybe a couple weeks prior to the water change. I don't want to buy more Brilliance- the smallest quantity costs almost $20 and would last for several months.
Is is feasable for me to just let the bromine readings go to zero, then start using dichlor? I've heard the saying "Once a bromine tub, always a bromine tub".
It's accepted that the way to switch is to change the water and start over.
What would happen if I just started dosing with dichlor for a couple weeks? Would I be able to accurately test chlorine levels with the bromine water, even if the bromine tested at zero?
Any insight appreciated.