Vetus anti siphon valve check - prevent flooding the engine with seawater 

Many thanks. This helped me clean mine. TOP TIP - for a periodic quick check, blow down the air intake pipe gently - this should be possible. The suck, this should NOT be possible. Sometimes you can hear/feel the valve closing / opening. Very reassuring. But, yes also clean periodically. Of course the vent pipe must not be in danger of being submerged in bilge water, this would have obvious bad consequences!

You deserve more followers. Keep up the good work. Thanks for the video :-)

I've only just found your channel. Of course, subscribed so that I don't miss another. Well done on getting these out so well. I find it really difficult to carry out maintenance with one hand whilst holding a camera steady with the other, and then to speak in a foreign tongue as well is just awesome. Thanks for the videos. I'm learning more than I thought I would with these.

Yes, thanks for this. I did not know exactly how these siphons (pronounced sigh-fun) things work --- and now I understand. Thanks Tino

Thank you Tino! Just cleaned mine and I was bit reluctant to pull the valve out. Thanks to you I could do it without fearing to damage anything.

Thanks for all the videos you've produced for your Bavaria 32 Tino; as I have the same boat I've found them very useful. On this project I could not get the back cap screw loose because of the clearance problem, so I removed the whole assembly and bracket by removing the the 4 bracket screws. It was very quick, and easy to replace. To others, I recommend that you do not remove the two bolts holding the valve to the bracket as they have loose nuts on the back that will fall off and then you'll have to remove the bracket anyway.

Great video, now I understand how to clean and service this valve and how its supposed to work! Thank you!

Very helpful, thank you so much!

Excellent instructional video Tino.....and in understandable English.....thank you!

Thankyou a very timely vid and well explained was wondering just where the siphon was to be fitted .

Hej Tino, tak for en skønt og lærerig video, ser frem til næste.... godt nytår

Another great informative video 👍👍 thanks Tino

Good video Thanks for sharing this info on the Vetus Loop Valve

Thanks 🙏. A great explanation. 👏👍

Thank you. Makes this easy to understand. Not much more complicated than a rubber duck.

Much easier to remove the whole assembly from the wall to inspect the valve

Thanks very much - really easy to follow.

Good job

Thank you!

To Make it easier take two pipes off and remove the unit from the bulkhead and wash it through in the sink

Your anti siphon valves goes after your heat exchanger to your exhaust mixing elbow, not after your sea water pump.

I missed a few videos. This was a good one - a good look at a small but important part. I'm wondering if the little bit of water staining is a small burp/few drops that get squeezed up into the vent line when the valve opens and closes. It would be interesting to put a small cup under the vent to see how much water comes out of the line if you see water marks on the fire wall again.

... thank you for the video. I would like to exchange my original Volvo Penta valve (defective) for the Vetus valve. However, my valve sits in front of the impeller pump? I.e. my seawater is sucked through the gooseneck and the valve and not pushed through. Do you think I need to change this, i.e. install the vacuum valve between the impeller pump and the engine? thank you for your opinion.

thanks tino for making another great informative video 👍 How long do you plan on keeping this yacht ?

Hej tino Fin video om antihæveret. Hvor højt ligger din motor i forhold til vandlinien ?

Thanks so much for your video tutorial. I was cleaning out all my salt water cooling system and i find this device which is not in any of the manuals so im sure a previous owner installed it. They have installed it different to the way you have it, You have it going from your sea water sea cock but the previous owner of my sail boat installed this after the temperature switch so after its already gone into the engine. This is bad right? and this installation wont stop the flooding of the boat if the seacock goes bad so iv digging in the piping diagrams and whats suppose to happen is the seawater come in via the seacock and into the pump then into a t junction which goes to the engine block and also up to a temp switch then into a mixing elbow and out the exhaust etc but on mine the piping has been diverted from the temp switch into that anti syphon valve and back through then into the mixing elbow instead of how you have it going in the psyphon valve directly from the seacock. Thanks for videos I am subscribing xxx

Should use teflon spray "Spray the valve with Teflon spray and fit it in the housing. Do not use any silicone oil, engine oil or grease" from Vetus usermanual

Please your English is not suffice to explain this very important science related condition, that if it is not fully understand, it becomes a very costly and possible engine removal needing pistons replaced costing thousands of dollars. When speaking a foreign language to understand context and various ideas pertaining to wording is important. You are not only butchering the language, but doing a great disservice. Do you know a lot of sailboats with engines do not need to bother about synphoning and others do. Even tiolets and fueltanks may need to address this problem. What are the various ways to address these problems There are several. Which one is best. Your not being helpful.

Thank you!