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The Official Site of The City of Markham

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You must control the pH level in your sewage. If waste with a pH level outside the 6 to 10.5 range is released into sewer, it can quickly cause significant damage and/or blockages.

Controlling the pH Level in Your Sewage Video - For Industrial & Commercial Properties


Controlling the pH Level in Your Sewage Brochure (PDF) for Industrial & Commercial Properties.

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