1. Regarding the filter, post the EXACT filter make / model + pictures if at all possible, sent to poolforum@gmail.com . . . and answer a question: has the pool been green and slimy since the cartridges were cleaned?

2. Regarding shock . . . nope, that's not an option till you can tell us EXACTLY what your "shock powder" is -- EXACT manufacturer and product name -- AND can give us test readings. (Some stuff sold as 'shock' is a MESS, and regardless, we can't tell how the side effects of different materials will affect your pool, till we have test readings.)

Have you ordered that kit?

Ben