Unless I'm mistaken, 0 TC less 0 FC = 0 CC. As long as your combined chlorine is 0, then you shouldn't need to shock (in most cases). Post the results when you test this evening and the kind folk on this forum will give you guidance.
Unless I'm mistaken, 0 TC less 0 FC = 0 CC. As long as your combined chlorine is 0, then you shouldn't need to shock (in most cases). Post the results when you test this evening and the kind folk on this forum will give you guidance.
IG 30,000 gal vinyl
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