I'm not an expert by any means, but when I made the faux seawater I made the salty water first by heating the distilled water, adding the salts and stirred until they were dissolved, then made salty water ice cubes, then made my lye solution with the salty ice cubes. The solution was cloudy but no floaties (or sinkies
). I just stirred until the lye dissolved, letting it sit a minute or 2 between stirrings. I wasn't worried about it being cloudy because it's a lye solution, so there's chemical reaction going on, and I used it without straining because the lye was fully dissolved. Just sharing my experience