Bronze through hull fittings.

[Shiver Metimbers]

I've renewed two through the hull fittings from some sort of plasticky nylon material to Bronze with Bronze sea cocks. Do these now have to be bonded to the sacrificial anode?

 

[prv]

I've renewed two through the hull fittings from some sort of plasticky nylon material to Bronze with Bronze sea cocks. Do these now have to be bonded to the sacrificial anode?

No.

Pete

 

[sailorman]

I've renewed two through the hull fittings from some sort of plasticky nylon material to Bronze with Bronze sea cocks. Do these now have to be bonded to the sacrificial anode?

Do NOT bond them

 

[vyv_cox]

Two short and sweet answers, no problem with them. Bronze has no need for an anode, it will last for many years perfectly well on its own. Bronze cannon recovered from the sea after centuries of immersion are often perfect. Connecting bronze to a bond circuit can have an adverse effect on other fittings of lesser metallurgy, which can corrode preferentially.

I have been trying to find out why advice in USA is directly opposite from this. It seems it is to help to dissipate lightning strikes, nothing to do with corrosion protection.

 

[Shiver Metimbers]

Great,that saves more wiring and cabling.

 

[Shiver Metimbers]

While on the subject of bonding, what should be bonded to the main anode?

 

[prv]

While on the subject of bonding, what should be bonded to the main anode?

Things that have two dissimilar metals in contact - the typical example being a brass prop on a stainless shaft.

Pete

 

[Tranona]

While on the subject of bonding, what should be bonded to the main anode?

You will find useful information on use of anodes on the MG Duff website. BTW make sure your new through hulls and valves are really bronze or DZR, not plain brass plumbing items.