After reading here for several days Ive convinced my brother to switch from Bromine to Chlorine. Two things Im not really clear on. He curremtly has a inline Brominator which were removing and will be using a float for the chlorine pucks. Is a float enough? Secondly and most importantly, after reading the posts here Ive learned the test kits dont distinguish between chlorine/bromine readings - so how do we know what levels were at?

Im glad I found this forum before getting my pool and listening to the bad advice for the pool store.
Thanks
John