CPC B65D 90/51 (2019.02) [B65D 88/08 (2013.01); B65D 88/30 (2013.01); B65D 90/024 (2013.01); B65D 90/14 (2013.01); B65D 90/24 (2013.01); B65D 90/34 (2013.01); G08B 21/182 (2013.01)] | 22 Claims |
1. A storage container comprising:
(a) a recirculation system including:
a recirculation pump;
a recirculation line that goes from a bottom end of the storage container toward a top end the storage container; and
a plurality of pressure relief valves spaced vertically along the recirculation line, wherein the pressure relief valves comprise at least:
a lower pressure relief valve that is configured to actuate from a closed position to an open position in response to a first pressure; and
an upper pressure relief valve that is configured to actuate from the closed position to the open position in response to a second pressure, wherein the first pressure is different than the second pressure;
(b) a fill line with an inlet valve;
(c) a high level warning system comprising a level monitor, a high level alarm, a high level switch, and an auto-shutoff valve for closing the inlet valve; and
(d) a leak detection device in communication with a leak detection alarm.
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