Somebody explain this to me because I can't understand the reasoning behind this ladies argument.
I went into the pool store tonight to buy some things for the pool and after asking which chlorine to use yesterday (thanks to all the replies) I figured I would just go with Calcium Hypo-chlorite. I was going to buy a 50 lb bucket ($80) and the lady who runs the place asked me why I was buying that. She knows me by name as she sold me the liner, and she says she has 30 years of experience. I informed her that after all my research, and reading this site, that I don't want to build up CYA in the pool with tablets, and that my uncle recommended Cal Hypo every other day, that he has been doing it for 20 years without a single problem on his vinyl pool. She told me that I shouldn't ever really have a problem with CYA with winter drains and back-flushing, and that I was throwing money away by using a product with only 70% chlorine as to over 90%. She also said that it's unstabalized so it will just burn right off. I said I know that, which is the reason for every other day, (as well as keeping me testing and on top of the pool so I don't wait for a problem to occur).
I also told her I'm considering using liquid chorine and she almost seemed to take it as a personal insult. She said why would I want to only put 15% chlorine product in instead of 90%. She didn't seem to understand the argument that by using the tabs or the cal hypo I was putting extra products in the pool.
My question is what is her motivation for trying to convince me to use tabs? As far as my calculations, it didn't really seem like I'd spend more money in her store buying tabs over calcium chloride. I was beginning to think she didn't really know everything she should or that she was just trying to convince me her way was best. I know she owns her own pool, so she must be familiar with pool chemistry. I'm racking my brain, but can't figure out why she was so irritated by this. Almost to the point where I want to take my business elsewhere.