Anti-Syphon Leak

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   Just need to be very very careful if placing a bottle under the pipe the water does not syphon back as Samuel noted, this can be catastrophic.
On earlier post it was mentioned that after cleaning with fresh water it leaked more ! I would check the leak is not from the rubber seal on the valve itself as seen this before, if so some silicone gel on rubber seal and joint normally resolves. To check I find easiest way is to dab cap joint with a blue paper roll when motoring to see if seeping. Hope this helps.

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Tranquillity Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 01 December 2018 Location: Hamble, UK Status: Offline Points: 267	Post Options Post Reply Quote Tranquillity Report Post Thanks(0) Quote Reply Posted: 02 April 2025 at 21:46
	Just need to be very very careful if placing a bottle under the pipe the water does not syphon back as Samuel noted, this can be catastrophic. On earlier post it was mentioned that after cleaning with fresh water it leaked more ! I would check the leak is not from the rubber seal on the valve itself as seen this before, if so some silicone gel on rubber seal and joint normally resolves. To check I find easiest way is to dab cap joint with a blue paper roll when motoring to see if seeping. Hope this helps.

Al 348 Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 25 October 2021 Location: USA Status: Offline Points: 22	Post Options Post Reply Quote Al 348 Report Post Thanks(0) Quote Reply Posted: 03 April 2025 at 14:46
	Thank you, Tranquility I tried that and still leaking. Ordered part Vetus #AV006 from Defender Marine for $14 and should arrive in the next few days and I will keep you posted. Al
	Peace through Sailing

Al 348 Members Profile Send Private Message Find Members Posts Add to Buddy List Lieutenant Joined: 25 October 2021 Location: USA Status: Offline Points: 22	Post Options Post Reply Quote Al 348 Report Post Thanks(0) Quote Reply Posted: 17 April 2025 at 20:30
	Dear Friends, I ordered a new Vetus valve air vent, part number AV006 from Defender Marine for $14 https://defender.com/en_us/vetus-valve-air-vent-av006 The valve looked exactly like the one that was defective. I couldn't see any difference. I replaced it and was very happy to see that the leak stopped. One word of caution; the valve does not come with a new "O" ring. So be careful not to discard the old one. Many thanks to all of you that helped solve this issue. Al
	Peace through Sailing

Tranquillity Members Profile Send Private Message Find Members Posts Add to Buddy List Captain Joined: 01 December 2018 Location: Hamble, UK Status: Offline Points: 267	Post Options Post Reply Quote Tranquillity Report Post Thanks(0) Quote Reply Posted: 17 April 2025 at 21:08
	Great stuff, pleased it worked !



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