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607.0 Potable Water Supply Tanks
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Potable water supply tanks shall be installed
in accordance with the manufacturer's installation instructions, and supported in accordance with the California Building Code.
Potable water supply tanks,
interior tank coatings, or tank liners intended to supply
drinking water shall be in accordance with NSF 61.
Tanks used for potable water shall be
tightly covered and vented in accordance with the manufacturer's
installation instructions. Such vent shall be screened
with a corrosion-resistant material of not less than number
24 mesh.
Tanks shall have not less than a 16 square inch (0.01 m2) overflow that is screened with a corrosion-resistant material of not less than number 24 mesh.
Pressurized tanks shall be provided with a
listed pressure-relief valve installed in accordance with the
manufacturer's installation instructions. The relief valve
shall be discharged in accordance with Section 608.5.
Where a potable water supply tank is located above the fixtures,
appliances, or system components it serves it shall be
equipped with a vacuum relief valve that is in accordance
with CSA Z21.22.
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