Laserfiche WebLink
Sec. 38-170. Required hazard <br /> generally. <br /> <br /> The cross-connection hazard <br />required shall be as set forth <br /> <br />TYPE OF CONNECTION <br /> <br />(a) Direct water connections, subject ro <br /> backpressnre from: <br /> (1) Pumps, tanks and lines containing_ <br /> a. Sewage substances <br /> b. Toxic substances <br /> c. Nontoxic substances <br /> (2) Bream lines and steam boilers <br /> a. Boiler or steam connection so <br /> toxic substances <br /> b. Boiler or steam ccnnection t< <br /> nontoxic substances {boiler blow <br /> off or drains no connected <br /> directly to sewer) <br /> <br />(a) Inlet-t~pe water connectionn not subject <br /> to backpressure: <br /> (1) ~asto line(not subject to backpressure <br /> due to waste line stoppages) X <br /> (2) Low inlet to receptacles containing <br /> tonic substances X <br /> (3) Low inlet to receptacles cnntainin~ <br /> nontoxic substances E <br /> (4) Low inlet into domestic water tanks <br /> (B) Lawn sprinkler oyscems X <br /> (B) Coils ur jackets used as heat <br /> exchan~.~ in c~presscro, de~reasexs, <br /> or other equipment: <br /> a. In to{ir substances X <br /> b. In nontoxic substances X <br /> (7) Flush val;e toilets <br /> (S) Toilet and urinal tanks X <br /> (9) Trough urinals <br /> (10) Valved outlets or fixtures with <br /> hose attachments which may <br /> constitute a crosS-connection: <br /> a, Tcaic ~ubstances X <br /> b, Nontoxic substances X <br /> <br />and backf 1 ow prevention devices <br /> <br />and backflow prevention <br />in the following chart: <br /> <br />TYPE OF DEVICE TO BE USED 3 <br /> <br />devices <br /> <br />~--Pm~ Double Reduced <br /> <br /> Vacuum Vacuum Valve Backfhw <br /> Breaker Breaker Assembly Preven~{~ <br /> <br />X <br /> <br />X X X <br />N X X <br /> <br />X X X X <br />NO PRO?E¢?ION REQUIRED <br /> <br />N X X <br /> <br />X <br />X <br />X <br /> <br />I I X <br />X X X X <br /> <br /> <br />