OK, when I opened the pool this season I decided to switch to BBB for normal upkeep. Working Great. But I still shock with the powder cause from what I thought bleach was only an upkeep and to shock you used every week or when needed. Pool guys say bleach is great, use it all the time, Is this true????? I travel quite alot so as much as I would love to care for my pool I cant, when I hired the pool guys this season they requested I buy bleach for them to use. I really didnt believe them which is when I found this site. But I guess so. So my question is can I use bleach to shock as well as upkeep???