draincock
Tank emptying valve
A draincock is a valve or faucet at the lowest point of a tank, pipe, or radiator, used to drain liquid from a system.
The term combines drain with cock in its mechanical sense—a device controlling flow.
Open the draincock to flush the water heater.
Liquid flow controller
- stopcockValve controlling fluid passage
- petcockSmall drainage valve
- bibcockFaucet with bent outlet
- ballcockTank water-level regulator
gate valve · needle valve · check valve · bleed valve · shutoff · tap · faucet · threaded
Release of substance outward
- emptyHolding nothing inside
- purgeEliminate unwanted elements
- evacuateLeave due to danger
- bleedLose vital fluid
flush · release · outflow · sediment · sludge · coolant · reservoir · tank
Not closed
- closeNearby or to shut
- turnRotational movement
- twistRotating motion or surprise
- handlePart for gripping
lever · knob · regulate · adjust · clockwise · counterclockwise · flow control · shutoff
Suitable or proper
- couplingJoint between systems
- adapterDevice enabling equipment compatibility
- pipeHollow conveyance channel
- threadingPassing strand through opening
sealant · washer · nipple · elbow · compression · soldering · brazing · copper
Formal assessment of condition
- servicingPerforming routine maintenance
- cleaningRemoving dirt and mess
- replacementWhat takes another's place
- preventiveMeant to stop trouble
leakage · corrosion · wear · gaskets · seals · threads · wrench · tightening
spigot
Liquid flow controller
ballcock · gate valve · needle valve · check valve · bleed valve · shutoff · tap · faucet · threaded · brass
discharge
Release of substance outward
bleed · flush · release · outflow · sediment · sludge · coolant · reservoir · tank · boiler
open
Not closed
handle · lever · knob · regulate · adjust · clockwise · counterclockwise · flow control · shutoff · on-off
fitting
Suitable or proper
- couplingJoint between systems
- adapterDevice enabling equipment compatibility
- pipeHollow conveyance channel
threading · sealant · washer · nipple · elbow · compression · soldering · brazing · copper · PVC
inspection
Formal assessment of condition
- servicingPerforming routine maintenance
- cleaningRemoving dirt and mess
- replacementWhat takes another's place
preventive · leakage · corrosion · wear · gaskets · seals · threads · wrench · tightening · winterizing
draincockfill valve
Regulates tank water intake
inlet valve · filler cap · inlet · intake valve · charging port
drain, drained, draining, drainage, drains, cock, drainpipe, drainer, cockerel