Your alkalinity is perfect leave that alone...they are just trying to sell you stuff. Trust me I know from experience Even if you did need to raise it, all you do is add baking soda...

I don't know what "Eckoclean" is but you probably would have been better off not adding all that stuff in the water that could have made it worse. But hey I did the same thing at opening, we learn from our mistakes though.

And as for your pump/filter...I'm not an expert but that seems like a pretty small filter for that size of a pool.

I guess what they would need to know (they, being the folks here) is are you wanting to use the BBB method, or do you want to continue with the pool store game?

BBB method: http://poolsolutions.com/gd/the-BBB-...pool-care.html