Hi Folks;
I'm hoping that someone can help me out. I'm having some issue with be Febco 825Y (3/4") leaking from behind the relief valve. I've been troubleshooting it for a while and I'm stumped. Here's what the leak looks like.
So a bit of history.
- I'm not the original owner and it looks like the backflow valve was installed upside down. That will need to be addressed once this problem is solved.
- I went to pressurize it a couple weeks back and noticed the relieve valve was cracked. Probably from being upside down through the winter. (Bad one is on left, replacement on the right.)
- I ordered a new relief valve and a complete replacement gasket set. Skipped the discharge shield for now.
- I completely disassembled the unit, checked for debris and found a couple pieces that I removed.
- While the relief valve plate was removed, I used pressurized air to clean out the 2 small channels. I don't know the proper name but they are what the 2 plastic tubes connect with in this shot. I believe they pressurize the relief valve.
- Replaced every gasket and the relieve vale.
- The check valves were not cracked and the springs were not corroded so I didn't replace them. I did replace the rubber gaskets.
- Disassembled the replacement relief valve to check the o-ring (just in case) It was good.
- Reassembled the unit and slowly pressurized.
- When I pressurize the system, you can see the relief valve closes but I still get water flowing from behind it.
I don't have a pressure gauge so the only way I can check if the first check valve is operating is to open test cock 4. Although, the relief valve is closing so I suspect that the text valve is OK. For completeness, you can see what happens when the test cock is open.
Any thoughts would be greatly appreciated!
I'm hoping that someone can help me out. I'm having some issue with be Febco 825Y (3/4") leaking from behind the relief valve. I've been troubleshooting it for a while and I'm stumped. Here's what the leak looks like.
So a bit of history.
- I'm not the original owner and it looks like the backflow valve was installed upside down. That will need to be addressed once this problem is solved.
- I went to pressurize it a couple weeks back and noticed the relieve valve was cracked. Probably from being upside down through the winter. (Bad one is on left, replacement on the right.)
- I ordered a new relief valve and a complete replacement gasket set. Skipped the discharge shield for now.
- I completely disassembled the unit, checked for debris and found a couple pieces that I removed.
- While the relief valve plate was removed, I used pressurized air to clean out the 2 small channels. I don't know the proper name but they are what the 2 plastic tubes connect with in this shot. I believe they pressurize the relief valve.
- Replaced every gasket and the relieve vale.
- The check valves were not cracked and the springs were not corroded so I didn't replace them. I did replace the rubber gaskets.
- Disassembled the replacement relief valve to check the o-ring (just in case) It was good.
- Reassembled the unit and slowly pressurized.
- When I pressurize the system, you can see the relief valve closes but I still get water flowing from behind it.
I don't have a pressure gauge so the only way I can check if the first check valve is operating is to open test cock 4. Although, the relief valve is closing so I suspect that the text valve is OK. For completeness, you can see what happens when the test cock is open.
Any thoughts would be greatly appreciated!