Wet systems contain water in the riser at all times supplied by
City main
Gravity tank
Pressure tank
And/or Fire Pump
Buildings that require a stretch of more than ______ lengths of hose should be included in CIDS
More than 3 lengths SHOULD
Dry systems may be equipped with an automatics source of supply but
Many contain NO water and the ONLY supply is from FD pumpers
Most combination systems are
“Wet” and water flow demands of sprinkler and standpipe require prompt augmentation by FD pumpers