I recently set up a 14'x42" Intex AG ultra frame pool, running a 3000gph filter, 3300g capacity, with a newly added Hayward Skimmer. Water filled it Saturday & Sunday last week - we really didn't add anything to it until it began to get cloudy the next Friday. This weekend I took my water to get tested at a Specialty Store and they gave me granular shock, some calcium, and algaecide. We started with the shock - and boom, the cloudiness cleared and the pool went green!
I've been reading Pool School and making adjustments (my pH was low at 6.4 - lowest my test strips could register), zero alkalinity, and low chlorine... I've added baking soda and borax and bleach - I'm now running at >10 FC, 7.6 pH, and 80ppm TA. The shop registered my CYA at 30ppm (I tossed what I had left over from the previous season in to get the pool started).
Water is coming from a filtered municipal source. Copper is very unlikely the problem (I might have some copper ion test strips to make sure - I'll dig around). I've researched and researched and everything I seem to be doing doesn't seem to be making a difference. Any help or suggestions are welcome.