| CPC B67D 99/00 (2013.01) [B67D 2210/00136 (2013.01); E03B 7/12 (2013.01)] | 10 Claims |

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1. A system for transport and delivery of a liquid, comprising:
a first tank configured to contain the liquid, the first tank including a first tank outlet line and a first return line;
a delivery system connected to the first tank, the delivery system including:
a pump configurable to draw the liquid through a pump inlet line in flow communication with the first tank, the pump inlet line selectively connected to the first tank outlet line, and
a manifold connected to the pump, the manifold selectively configurable to direct the liquid to one of a system outlet line and the first return line for returning liquid to the first tank; and
a transfer tank configurable for sampling the liquid and including a transfer tank outlet line configurable for transferring the liquid to the delivery system, the transfer tank configured to contain the liquid and the transfer tank outlet line including a port for sampling the liquid,
wherein the transfer tank includes a transfer tank inlet, and the transfer tank inlet is configurable to be in flow communication with a selected one of at least the first tank during delivery of the liquid from the system and a hose for transferring the liquid to the system during draining of the liquid to the system.
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