u/DirectingJJ

I am a new swim spa owner just since the late spring. It is summer, and we haven't been in for a few weeks because it has been so hot, but I have been test-stripping it and putting the new bucket of chlorine in to treat it. I wasn't showing any or very low FC and I just realized that for the past 3 weeks I have been using trichlor granules (53.5%) instead of DiChlor. I am not sure what I need to do in order to fix this as quickly as possible because, from why searching on here it appears to be very bad for the Spa.

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I ran a new test strip and got the results below. I have ordered a taylor kit for better testing going forward but what should I do now? full drain? Partial drain? Just leave the lid off?

PH - 8.4

FC- 0 PPM

TA - 80

STablizer - 70