When is the auto ball-drip required on the hookup (dry) side of the check valve for a Fire Department Connection?
In areas prone to freezing, there is the FDC, then a dry portion of pipe, then the check valve. If the check valve is located higher than the FDC (as is typical for our FDCs near risers), can't the connection itself drain the dry portion?
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1/31/2020 08:01:17 am
This is just to state what you probably already know, in order to comply with Section 188.8.131.52 and Figure 184.108.40.206 the automatic ball drip is required.
1/31/2020 10:17:11 am
Another possibility (if accepted) in your case and if you have caps, is to drill a small hole in the caps to allow any possible water trapped to drain.
1/31/2020 11:26:36 am
Another aspect that gets overlooked with this requirement is when a Stortz type connection is used. If the check valve leaks then the area behind the cap can become pressurized and create a hazardous situation for anyone needing to remove the cap. The ball drip alleviates this hazard as well.
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