Welcome to Plbg.com
Thank you to all the plumbing professionals who offer their advice and expertise

Over 692,000 strictly plumbing related posts

Plumbing advice, answers, information, help and suggestions are provided here by experienced plumbers who wish to "give back" to others. Since 1996 we have been the best online (strictly) PLUMBING forum. If you have questions and are looking for answers or wish to discuss anything about toilets, sinks, faucets, drainage, water filters, venting, water heating, showers, pumps, and other exclusively PLUMBING related issues then you've come to the right place. Please refrain from asking or discussing legal questions, or pricing, or where to purchase products, or any business issues, or for contractor referrals, or any other questions or issues not specifically related to plumbing. Keep all posts positive and absolutely no advertising. Our site is completely free, without ads or pop-ups and we don't tract you. We absolutely do not sell your personal information. We are made possible by:  

Post New
Log In
How to Show Images
Newest Subjects
 Sprinkler system backflow preventer spraying water from bonnet
Author: esellmi (MI)

This was posted earlier, but I didn't see an answer. I replaced the parts inside the backflow preventer and for 2-3 weeks, everything was great. No leaks. But then it started spraying water out between the edge of the housing and the bonnet. It seems to be pushing the o ring out of the housing and causing the water to spray out in that one spot. I've replaced the parts inside again, but can't get it to stop. Any suggestions? I have the FEBCO 765-3/4 backflow preventer.

Post Reply

 Re: Sprinkler system backflow preventer spraying water from bonnet
Author: bsipps (PA)

Backflow prevention is a very serious thing to water companies and plumbers and also should be to a homeowner

Backflow can cause bacterial infection and contamination of the water distribution system

In my area you must have a backflow certification to install and repair the device

You have already tried to repair it and it is still leaking

It may be time to call a plumber certified in backflow assembly prevention repair

Post Reply

 Re: Sprinkler system backflow preventer spraying water from bonnet
Author: packy (MA)


Post Reply

Please note:
  • Inappropriate messages or blatant advertising will be deleted. We cannot be held responsible for bad or inadequate advice.
  • Plbg.com has no control over external content that may be linked to from messages posted here. Please follow external links with caution.
  • Plbg.com is strictly for the exchange of plumbing related advice and NOT to ask about pricing/costs, nor where to find a product (try Google), nor how to operate or promote a business, nor for ethics (law) and the like questions.
  • Plbg.com is also not a place to ask radiant heating (try HeatingHelp.com), electrical or even general construction type questions. We are exclusively for plumbing questions.

Search for plumbing parts on our sponsor's site:

Special thanks to our sponsor:

Copyright© 2023 Plbg.com. All Rights Reserved.