A system includes a dip tube, a feed line, and a check valve. The dip tube is inserted through an opening in a source of chemical precursor and into the chemical precursor in the source. A portion of the feed line is located in the dip tube. The feed line passes out of the dip tube. The chemical precursor is capable of flowing out of the source through the feed line in a downstream direction. The check valve is located in the portion of the feed line in the dip tube. The check valve permits the chemical precursor to pass substantially only in the downstream direction. The feed line is coupled to a transfer pump that draws the chemical precursor out of the source through the portion of the feed line in the dip tube.

A system includes a dip tube, a feed line, and a check valve. The dip tube is inserted through an opening in a source of chemical precursor and into the chemical precursor in the source. A portion of the feed line is located in the dip tube. The feed line passes out of the dip tube. The chemical precursor is capable of flowing out of the source through the feed line in a downstream direction. The check valve is located in the portion of the feed line in the dip tube. The check valve permits the chemical precursor to pass substantially only in the downstream direction. The feed line is coupled to a transfer pump that draws the chemical precursor out of the source through the portion of the feed line in the dip tube.

Exemplary sanitary soap refilling systems and methods are disclosed herein. An exemplary refill refilling system includes a housing, a pump located within the housing, and a bulk storage tank connector. The bulk storage tank connector having a liquid outlet and an air inlet. A liquid inlet conduit is in fluid communication with the pump the liquid outlet. A refill connector is included. The refill connector has a liquid inlet and an air outlet. The refill connector air outlet and the bulk storage tank connector air inlet are in fluid communication with one another. The refill liquid inlet is in fluid communication with the pump.

Exemplary sanitary soap refilling systems and methods are disclosed herein. An exemplary refill refilling system includes a housing, a pump located within the housing, and a bulk storage tank connector. The bulk storage tank connector having a liquid outlet and an air inlet. A liquid inlet conduit is in fluid communication with the pump the liquid outlet. A refill connector is included. The refill connector has a liquid inlet and an air outlet. The refill connector air outlet and the bulk storage tank connector air inlet are in fluid communication with one another. The refill liquid inlet is in fluid communication with the pump.

Improvements in a portable vehicle fueling kiosk is disclosed. The kiosk is constructed on a pallet or a skid that allows the kiosk to be placed, located or moved to a location where the fuel dispensing is desired. A fuel tanker that would normally dispense fuel to a storage tank of a gas station is connected to one side of the kiosk. The kiosk accepts payment by nearly any form of money, credit card or token to measure, dispense and bill or invoice the user. The kiosk can have a Wi-Fi or cellular communication to communicate with a user at a distance and can monitor, use, status and remaining fuel in the tanker. If a fuel tanker has been depleted additional tankers can be connected to the kiosk, and when the kiosk is no longer needed it can be transported to another location.

A point-of-sale fuel dispensing system, a pump assembly and a method of dispensing fuel at a point-of-sale. The system includes a market fuel storage tank, pump assembly, fuel conduit, separation unit, numerous enriched fuel product tanks and a controller. The separation unit may selectively receive at least a portion of market fuel and convert it into an octane-rich fuel component and a cetane-rich fuel component that may be subsequently dispensed to a vehicle being fueled, where a fuel grade selection and retail payment of a fuel containing the octane-rich or cetane-rich fuel components is provided to the vehicle based on user input at the customer interface.

A point-of-sale fuel dispensing system, a pump assembly and a method of dispensing fuel at a point-of-sale. The system includes a market fuel storage tank, pump assembly, fuel conduit, separation unit, numerous enriched fuel product tanks and a controller. The separation unit may selectively receive at least a portion of market fuel and convert it into an octane-rich fuel component and a cetane-rich fuel component that may be subsequently dispensed to a vehicle being fueled, where a fuel grade selection and retail payment of a fuel containing the octane-rich or cetane-rich fuel components is provided to the vehicle based on user input at the customer interface.

A distribution station includes an adjustable feed network that connects first and second pumps with first and second manifolds. The network is switchable between first and second configurations. In the first configuration a first pump is fluidly connected with the first manifold and fluidly disconnected from the second manifold. Concurrently, the second pump is fluidly connected to the second manifold and is fluidly disconnected from the first manifold. In the second configuration the first pump is fluidly connected with the second manifold and fluidly disconnected from the first manifold, and the second pump is fluidly disconnected from the first and second manifolds.

A distribution station includes an adjustable feed network that connects first and second pumps with first and second manifolds. The network is switchable between first and second configurations. In the first configuration a first pump is fluidly connected with the first manifold and fluidly disconnected from the second manifold. Concurrently, the second pump is fluidly connected to the second manifold and is fluidly disconnected from the first manifold. In the second configuration the first pump is fluidly connected with the second manifold and fluidly disconnected from the first manifold, and the second pump is fluidly disconnected from the first and second manifolds.

A distribution station includes a plurality of pneumatic valves on a mobile structure. Each pneumatic valve is situated between a manifold and a reel of a plurality of reels. A plurality of secondary valves are connected by an air or gas line to corresponding ones of the pneumatic valves. Each secondary valve is operable between open and closed positions to permit air or gas flow to the corresponding pneumatic valve to open and close the pneumatic valve. A controller is configured to individually open and close the secondary valves responsive to fluid level sensors.