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No backflow valve

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Posted by Dan on November 02, 2010 at 16:14:16:

I noticed after reading a number of post that my boiler system has no backflow valve. It has pressure reducing valve but no backflow. Is it necessary on all boiler systems?

Follow Ups:

Re: No backflow valve HeatPro 19:30:46 11/02/2010 (3)
- nowe produkty bankowe critierporoff 18:41:04 11/28/2010 (0)
- Re: No backflow valve Dan 09:23:13 11/03/2010 (1)
  - Backflow valve brand Dan 09:36:51 11/05/2010 (0)

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