Talk:Toilet Holding Tank Disposal

Summary

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The basic styles of holding tank station seem to be:

• elsan point (walk up dumping basin)(also called a CDP or CTDP)
• round drain (gravity drain hose : 3" in diameter in the USA)
• pump-out (mechanical suction).

Accepting:

• Gray water (usually)
• Bilge water (rarely)
• Black water (usually)
• Black water but not gray water (occasionally)

Prohibiting:

• Certain tank chemicals

Offering at the same location:

• Rinse water which may not be potable.
• Drinking water (amenity=water_point).
• Drinking water (amenity=drinking_water).
• Walk up toilets.

Access Rules:

• From water or land, or in a few cases both.
• Free, paid in advance, pay at the pump with coins or cards, or pay at the office.
• Part of regional network or not (card key, payment card).
• Accessible to overnight guests only, or to everyone.

Position may be:

• Located on a dock next to waterway=fuel (often)
• Located on a separate dock.
• Located on land, even it only serves marine users.
• Located at each camping pitch.
• Located at a central location, with varying degrees of accessibility by large boats or motorhomes (often).
• Unknown (many RV and Marina sites list dump services on their websites, but the exact location does not appear on the brochure or map)(often).
• Associated with a walk up toilet, or not.

There are combination stations that have one or many of the above features.