Re: Sprinklers - Pressure relief

["Jim Rojas" <jrojas@xxxxxxxxxxxx>]

Yes...dead chickens

Jim Rojas



"Jim" <alarminex@xxxxxxx> wrote in message
news:1170395149.457882.66370@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> On Jan 31, 8:46?pm, "Jim Rojas" <jro...@xxxxxxxxxxxx> wrote:
>> Sprinkler system pressure is usually regulated by street water pressure.
>> Since sprinkler systems are designed to handle the 3 times the highest
>> possible water pressure from the city water supply, you don't need to
>> worry
>> about over pressure at all.
>>
>> The check valves or backflow preventers are there to make sure the system
>> holds its highest possible street pressure at all times in case city
>> water
>> supply falls low, due to drought, or high demands.
>>
>> Since the check valves & backflow preventors prevent water from leaving
>> the
>> system, often times the water gets stagnet, and gets heavy soot from oil
>> &
>> mineral deposits. During an annual inspection, the inspectors test valve
>> is
>> opened to simulate a head trigger. This should trigger the waterflow
>> switch,
>> and generate an alarm, after 45 seconds.
>>
>> It is a good idea to leave the inspectors test valve open for a couple of
>> minutes, or until the water turns clear. I have been on inspections where
>> the water comes out pitch black and has a real fowl odor.
>>
>> Jim Rojas
>>
> Jim, are you saying that the water actually smelled like chickens? ;-)
>