Alright pool masters, being the novice here I have a question (and I just got in a debate with a guy at work regarding pool stuff). I was told that following SLAM won't clear my pool, instead I should purchase clarifier and flocking agent, and that all I am doing will bleach my liner and make it fail sooner (which is whatever cause I will replace it next year anyways). Am I really doing it wrong or should I not trust his advice? To me, it sounds like he wants me to buy snake oil.