Seacocks 1 year on

[Sailfree]

Took the precaution of replacing all the seacocks and skin fittings on my Jeanneau 43DS last year.

One shows craters on the outside edge opposite each other. None are bonded.

All were bought as CR grade from ASAP last year.

I have sent photo to ASAP for their comments.

Not sure how to post the photo on here but the craters are just what you would see on an anode! No pink discolouration.

Anyone experienced similar problems? Any ideas as to cause or just faulty casting?

Of course it would be the hardest one to replace as its hard against the bulkhead and I had to assemble it loose against the hull as Rt angle won't turn when hard against the timber bulkhead.

 

[sailorman]

What was found to be wrong with the originals fitted by Jeanneau

 

[Sailfree]

What was found to be wrong with the originals fitted by Jeanneau

Original fittings on Jeanneau and even HR are not corrosion resistant and consensus opinion is that they could possibly fail at 15yrs - hence replace at 10yrs. There are plenty of posts showing fittings breaking on removal attempt when 12 to 15yrs old.

Do a search and you will find examples.

 

[sailorman]

Original fittings on Jeanneau and even HR are not corrosion resistant and consensus opinion is that they could possibly fail at 15yrs - hence replace at 10yrs. There are plenty of posts showing fittings breaking on removal attempt when 12 to 15yrs old.

Do a search and you will find examples.

I dont need to search i know about CE & modern boats seacocks. i wondered what you actually found when they were removed. mine are only 35 yrs old

 

[VicS]

Took the precaution of replacing all the seacocks and skin fittings on my Jeanneau 43DS last year.

One shows craters on the outside edge opposite each other. None are bonded.

All were bought as CR grade from ASAP last year.

I have sent photo to ASAP for their comments.

Not sure how to post the photo on here but the craters are just what you would see on an anode! No pink discolouration.

Anyone experienced similar problems? Any ideas as to cause or just faulty casting?

Of course it would be the hardest one to replace as its hard against the bulkhead and I had to assemble it loose against the hull as Rt angle won't turn when hard against the timber bulkhead.

Some photos would be interesting

Most popular method of posting pictures is to upload to Photobucket and to copy and paste in the code from there.

Tiny pic http://tinypic.com/ is a very simple method for the odd picture or two but P'bucket allows you to store, edit and reuse a large number of images on websites, forums, blogs, social media etc

I am sure Vyv Cox will have an opinion if he sees some pictures

 

[Georgio]

I am still amazed that boat builders will fit seacocks of such a short lifespan. The Blakes on my Co32 are all original and in good condition 37 years later.

 

[Len Ingalls]

Can't you buy real bronze skin fittings (thru hulls) in UK/Eur.? Proven best over last hundred yrs.
Or,at least,Marelon.
Nothing but bronze,marelon or SS allowed under water over here on the left side.No brass or plastic allowed U/Water.
Never heard of DZR over here .It is brass,de zinced or not-no strength.
Brass anything has no place on a boat,except maybe the "Head" plaque.if u have someone aboard that likes polishing.

I see so many posts about corroding thru hulls-just couldn't help asking. No offense intended.
Cheers/Len

 

[vyv_cox]

Can't you buy real bronze skin fittings (thru hulls) in UK/Eur.? Proven best over last hundred yrs.
Or,at least,Marelon.
Nothing but bronze,marelon or SS allowed under water over here on the left side.No brass or plastic allowed U/Water.
Never heard of DZR over here .It is brass,de zinced or not-no strength.
Brass anything has no place on a boat,except maybe the "Head" plaque.if u have someone aboard that likes polishing.

I see so many posts about corroding thru hulls-just couldn't help asking. No offense intended.
Cheers/Len

DZR was invented in UK by the plumbing industry to cope with early corrosion of 'normal' brass in the acidic waters enjoyed by many homes in UK. Ours is one, our water comes from peat bogs feeding mountain streams. Blakes seacocks, renowned for their longevity, have been made from it since the middle 1980s. I think that mine, dating from 1984, are probably DZR with no sign of any problems.

 

[MikeBz]

When we acquired our 10-year old Jeanneau last year I made it a condition of purchase that the original brass seacocks were changed (I sourced DZR replacements from ASAP supplies). The engineer took them out with a grinder and they looked like new! Having seen some which have fallen apart after 5 years I guess the only conclusion is "you just can't tell".

 

[GrahamHR]

Can't you buy real bronze skin fittings (thru hulls) in UK/Eur.? Proven best over last hundred yrs.
Or,at least,Marelon.
Nothing but bronze,marelon or SS allowed under water over here on the left side.No brass or plastic allowed U/Water..
Cheers/Len

Err, isn't Marelon a "plastic" ( what a misused term implying "cheap") ? Even if it is ( actually, I know it is), there's nothing wrong with it. Very tough, totally resistant to corrosion. Why would anyone use a metal alternative ?

 

[Tranona]

Err, isn't Marelon a "plastic" ( what a misused term implying "cheap") ? Even if it is ( actually, I know it is), there's nothing wrong with it. Very tough, totally resistant to corrosion. Why would anyone use a metal alternative ?

Perhaps because they are more expensive than perfectly satisfactory DZR and also because of the way they are designed are not a direct replacement for the commonly used brass and bronze fittings. Often used on North American built boats as they were developed there as a cheaper alternative to Bronze - DZR not being available there.