Standpipe

Noun

1. A vertical pipe into which water is pumped so that a desired pressure is available at the bottom. A vertical pipe used as an overflow protection drain in certain domestic plumbing fixtures (e.g. flush toilets).
2. A vertical pipe used as an overflow protection drain in certain domestic plumbing fixtures (e.g. flush toilets).
3. The plumbing for a water supply in a building for the use of firefighters; the water supply itself (firewater).

   "dry standpipe"

4. A freestanding pipe fitted with a tap which is installed outdoors to dispense water for everyday use.