C6 Corvette water marks

[Nick_418]

Hey guys I haven`t been on the forum for awhile.. Anyways I just purchased a C6 corvette for a good price with low mileage.. The owners from before had this car always sitting outside and has never been garaged until I owned it..
However, when I bought it, it had severe water etchings throughout the hood, bumper, trunk lid,
mirrors anywhere somewhat flat that water can settle and sit..
So I started using my Poorboys SSR 3 compound with a orange pad via portle
cable orbital... Then worked my way down to a SSR 2.5 and 1 with a white pad. Topped it off with PB Ex sealant and natty blues Wax.. The finished came out perfect and removed all the old marks... After the weather cleared up I went on a warm sunny cruise and after a couple of hours of driving I noticed that all the old spots appeared came back! I thought it might be a fluke and repeated everything I did the next weekend.. It came off perfectly. Drove it a little Saturday night. Examined it, it was fine and even tried a spot using rubbing alcohol and was fine.. Next Morning I let it sit in my drive way (warm and sunny) for an hour or so.. Came back to examine it. Everything started to appear again! I have no idea what to do, and the poorboy polishes im using has abrasives and aren`t fillers... So they aren`t hiding them.. It appears only hot sunny days.. Is wetsanding or painting the next approach? I`m so frustrated..
thanks!

[Nick_418]

Heres some pics and focus on the light. Thanks!