Thanks for the reply. My dilemma was the PoolBrand at Sam's which are selling locally for $89.98 for 40# , or the Pool Time at Home depot which are locally $67.98 for 25#. Per somewhere on this site I think I read that the Pool Time were nearly the same as the very expensive bioguard tabs... I was just worried the PoolBrand tabs might not be a good quality at such a good price point.