.....Pho (Phosphates) are above 1000 after drain refill. I read Pho aren't a problem until they reach over 1000 ppb.
Again, you are going to have to make a decision on how much phosphate is OK.... in YOUR pool. I'd definitely be looking into, but some people don't care and don't test. If you never dip below the minimum level of FC, you are probably fine.