Did you call Potter's tech support?

We routinely, at no charge, send out parts and pieces of products that are 
allowed to be field replaced.

If all you need is the 1" male threaded part of the VSR-ST, call our tech 
Support at; 1-866-956-1211 and tell them you need the plastic bushing for the 
VSR-ST, our part # 5180205. They should be willing to send it at no charge.

Kind Regards,


Mike Henke CET
Sprinkler Product Manager


Potter Electric Signal Company, LLC
1609 Park 370 Place, St. Louis, MO 63042
phone: 800-325-3936   |   direct: 314-595-6740<>   |<>

From: Sprinklerforum [] On 
Behalf Of Barry Levine
Sent: Friday, October 14, 2016 8:40 AM
Subject: Re: Seeking false water flow alarm suggestions

Does anyone have a spare 1" male threaded part for the Potter VSR-ST union? I 
have access to the rest of the switch, but the part needed to screw into my 
pipe is missing.

I'm sure someone has run across a non-operational Potter VSR-ST and is willing 
to sell me the union piece I am missing, rather than just throw the entire 
switch in the trash. I wish the manufacturer would sell parts, but they don't. 
I'm even willing to buy a used part, as long as it is still in good condition. 
I care about functionality, not looks. I appreciate any help anyone can offer.

On 10/12/2016 10:57 AM, rongreenman . wrote:
You'd need a hydro pump to overpressure your system but although your switch is 
doing what it should as mentioned, that switch does not have a built in time 
delay according to earlier reply. Changing it to one with a time delay would 
solve the problem. But why not just disconnect it. The is no requirement in 13d 
for an audible alarm or monitoring.

On Wednesday, October 12, 2016, Barry Levine 
<<>> wrote:

I assume attaching a water hose to my test valve wouldn't help, as the pressure 
from inside and outside would be the same. How do you suggest I add pressure to 
my system?

On 10/12/2016 9:52 AM, Steele, Andrew wrote:

I've heard of contractors pumping up sprinkler systems a few lbs over domestic 
supply, rather than leaving the sprinkler at supply pressure,  so there is no 
subsequent flow alarm after running an Inspectors test.

For example, our City water pressure trends up in the very late hours, then 
down as daytime usage increases.  This is about a five to eight pound change, 
sometimes it's enough to cause systems with failed check valves and short flow 
detection cycles, to alarm.

On Oct 12, 2016 8:38 AM, "Steele, Andrew" 
Check valve failure, so that the sprinkler leg is no longer isolated?

-----Original Message-----
From: Sprinklerforum 
 On Behalf Of Barry Levine
Sent: Wednesday, October 12, 2016 1:01 AM
Subject: Seeking false water flow alarm suggestions

I drained all the water from my pipes when I installed a new water 
filter/softener system in my home. After installing the new system, which 
replaced some 3/4" pipe with 1" pipe in my home water system, I have been 
getting false alarms from my Potter Electric Signal Co VS-SP flow sensor. I 
flushed my sprinkler system using the drain and the test valve, yet I believe 
some air pockets may still remain in my two areas of coffered ceilings, where 
the sprinklers sit 1 foot above the rest of the system. Potter recommends 
replacing the VS-SP with a VSR-ST. I'd prefer not spending the money to replace 
the sensor, but I'd like to hear from the professionals before I make that 
decision. I'm thinking there may be other solutions, especially since I never 
had any false alarms during the previous 20+ years. Possibly I could attach 
saddle valves between each of the two sprinklers in the two coffered ceilings 
and bleed the air out. Unfortunately, I've never had any long-term luck with 
saddle valves, as they have all become inoperative over time. I've attached a 
photo of my water system in case that might be helpful. Feel free to ask any 
questions or offer any solutions. Thank you.

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