I'm trying to install a pool cooler to take the water temps down - I'm reading 91/92 degrees currently. I need to put the piece into one of the side jet fittings. The problem is, I can't figure out how to get these fittings unscrewed. It looks like there might be a special tool that fits these by looking at the raised pieces of plastic on either side. For reference, these fittings are flush with the side of the pool, so getting some sort of plier or vice grips isn't happening.
Jet 1:
Jet 2:
Jet 1:
Jet 2:
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