Backflow Preventer/Anti Siphon Valve

[TomT]

Hi I'm new to the forum. We have a Bighorn 3600R/L 5th Wheel.
When flushing our black water tank, we suddenly heard water gushing inside the wall near the door. I shut the water off and after cleaning up finally found the source. The top of the Backflow Preventer/Anti Siphon Valve had come off. This is a fitting that the plastic flush line screws onto and has a vertical plunger and a horizontral ball and spring.
I can't find a replacement part!! The fitting is labeled R&B Model 571 110F 125PSI 1/2"

Any help locating a replacement part would be appreciated.

 

[truknutt]

Assuming you have tried your dealer and/or Heartland Customer Service.....

If you have the San-T-Flush system, try Swan Industries (http://www.swanindustries.com/)

To view their setups:
http://www.swanindustries.com/catalog/flushing.htm

Contact:
http://www.swanindustries.com/contact.html

 

[sailorand]

Tom
I had to replace my anti siphon valve last year. Got it from a plumbing dealer for $96. Solid brass to boot. Home depot did not carry it in Palm Springs.