Ohio Plumbing Code Updates - American Society of Sanitary ...
Ohio Plumbing Code Updates - American Society of Sanitary ...
Ohio Plumbing Code Updates - American Society of Sanitary ...
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• Air Admittance Valves, when used on<br />
septic systems:<br />
Septic systems<br />
• If the first chamber <strong>of</strong> septic tank has not<br />
been vented.<br />
• A vent should be at the first connection <strong>of</strong><br />
building DWV system to prevent positive<br />
pressure from the tank.
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