How do you drain clogged galley drains?

How do you drain clogged galley drains?

• A. Rotate clog clearing valve and press GWIV override
• B. Press the overload button
• C. Use the sink drain manual lever
• D. Turn off the galley water supply

Answer: (D)

Isolating the galley water supply is the first step when draining clogged galley drains. When water is still flowing into the galley system, the drains stay full and any attempt to drain is hindered by new water entering. By turning off the galley water supply, you stop further inflow, allowing the remaining water in the lines to clear away and making it possible to see and address the clog more effectively. This step also reduces pressure in the line, which helps during any subsequent clog-clearing actions. Other actions don’t directly achieve drainage of the galley system: manipulating a clog-clearing valve or override targets the blockage itself rather than the drainage path; the overload button is unrelated to drain operations; and using the sink drain lever affects only the sink basin, not the entire galley drain network. Turning off the galley water supply directly enables proper drainage of the clogged system.

Isolating the galley water supply is the first step when draining clogged galley drains. When water is still flowing into the galley system, the drains stay full and any attempt to drain is hindered by new water entering. By turning off the galley water supply, you stop further inflow, allowing the remaining water in the lines to clear away and making it possible to see and address the clog more effectively. This step also reduces pressure in the line, which helps during any subsequent clog-clearing actions.

Other actions don’t directly achieve drainage of the galley system: manipulating a clog-clearing valve or override targets the blockage itself rather than the drainage path; the overload button is unrelated to drain operations; and using the sink drain lever affects only the sink basin, not the entire galley drain network. Turning off the galley water supply directly enables proper drainage of the clogged system.