The use of drip or blow-off pipes for draining fire pipes shall be allowed only in cases of absolute necessity, and in no case shall their installation be permitted unless furnished with a sealed valve. The end of every such pipe shall be exposed to view at all times. Such drip or blow-off pipes shall not exceed three- fourths (3/4) inch inside diameter.
(Ord. No. 99566. Passed 5-22-33)