Tuesday, January 9, 2024

10 JAN 2024

 



















[16:48, 10/01/2024] RONALD KH: swimming pool CL 1.5/pH 7.8




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20 JUNE 2024

[14:38, 20/06/2024] Edwin Chen 013: All OK? [14:45, 20/06/2024] Leung KH🍀: Okay [14:46, 20/06/2024] Leung KH🍀: 3,329ppm [14:46, 20/06/2024...