Oil in bilge
I just helped someone with this problem. Fixed it with a
Craftsman $7 drill motor fluid pump,
two lengths of hose,
gallon of simple green
OSH 1 gallon lawn sprayer (fill w warm H2O + SGreen)
The sprayer let him reach up into the bilge corners.
Spray, rinse... repeat.
Pump out into
2x five gallon plasic jugs
We used the big oil absorbing pads to filter the wash-down water as he dumped it down his drain.
Seemed to work fairly well.