VC-10 From United Kingdom, joined Oct 1999, 3691 posts, RR: 35 Reply 5, posted (8 years 6 months 6 days 23 hours ago) and read 2097 times:
I venture to suggest you are getting confused with indirect (remote) drain valves where the drain isn't at the lowest point of the tank but is connected to some pipework that transports the water from the lowest point to the valve.
HAWK21M From India, joined Jan 2001, 31457 posts, RR: 57 Reply 6, posted (8 years 6 months 6 days 3 hours ago) and read 2005 times:
I spoke to a Kingfisher AME friend,who says the drains are Solenoid operated But Electrically controlled manually selected to drain accumulated water from various areas.The outlets are the Wing root areas near the Fuselage.
Widebody From Ireland, joined Aug 2000, 1150 posts, RR: 9 Reply 9, posted (8 years 6 months 4 days ago) and read 1889 times:
The fuselage has a few valves to drain the bilge area on take-off and landing on A320's, they open at 2.1psi I think. You can hear the hissing noise in the cockpit on take-off/landing via the door drain grid.
Troubleshooter From Germany, joined Feb 2005, 423 posts, RR: 5 Reply 10, posted (8 years 6 months 3 days 18 hours ago) and read 1875 times:
The only aircraft with a "remote" fuel tank water drain I know is the Boeing 737. The center fuel tank sump drain valve is operated by a rod mechanism through an access panel on the lower fuselage skin.