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A marine pump out staion pumps out on board holding tanks.
Pumps out waste from holding tanks
To pump out any holding tanks
A marine pump out staion pumps out on board holding tanks.
A place to empty holding tanks.
A place to empty holding tanks.
A place to empty holding tanks.
A) Fuel B)Water C)Holding D)ballast
Poo-poo and Pee-pee are pumped out of the holding tanks by ground personnel.
Don't empty the holding tanks... i.e. crappers.
Sewer pipes usually flow downhill or into holding tanks where the sewage is pumped out using big pumps.