I haven't used the HTH since I started dosing with the bleach. I'm on day 3 bleach only. The ph was 7.8 with the dilution test so I'll check it again tomorrow if the cl level drops again and dilute again when I test and see what I get to confirm. If its still on the upper range I'll add the acid tomorrow. Vacuumed to waste added more water looking like a cloudy green color maybe with a grayish tinge now so its the fine stuff that has to filter out some more. Hope the level holds better tonight so I know I'm going in the right direction. Thanks