First thing you should do is find the source of the contaminations.
By the look of the analysis you have something rusting somewhere either in the water or near to the water. There is little point carry out any remedial actions if you don't find the source of the problem. Hose clamps, Magnets, Rusty door hinges, broken heaters, these are the most common.
Once you have located and removed the source then you can get to fixing with some water changes. As already mentioned you don't need to use Pure 2.0, you can also use Tropic Marin Pro, Red Sea Blue Bucket, D&D H2Ocean. These are 3 that we have tested and found pure, there will be others that the community has tested so might also be worth asking around.
Speaking of salt I would say that your salinity is looking high with all your Macro elements being high individually. Approx calculation showing 40.38ppt or 1.0305 so you should look at calibrating your salinity measuring device and try to bring that down.
For your phosphate which media are you planning on using as some media can release Barium and other unwanted elements into the water. We have tested ROWAPhos and Phosban and being pure and uncontaminated.
and of course their own Pure 2.0.
