Replacing throug hulls / seacocks

[Tranona]

No. If they are the original ones they are almost certainly bronze, so if the balls are still free no reason to replace them. The blanket replacement of seacocks is a classic "moral panic" story. Not all seacocks are the same - nor do the poor (brass) ones fail anywhere near as frequently as the scaremongers would have you believe.

 

[vyv_cox]

I’ve not started this through hull replacement project yet, but thought before I started I’d do a test to see how brittle the seacocks are.

This morning I’ve give a sample a decently sharp hit with a hammer and none broke off / shattered or so much as moved. Are there any other non destructive tests I can / should do before leaving as they are for another year?

I know of a couple of owners whose seacocks broke off when they leaned on the attached hose. Give them some serious heaving to test.

 

[vyv_cox]

It is easy to tell the difference between brass and bronze, by colour. Clean up a small area. Bronze has quite a rosy appearance, known to Americans as 'red brass'.

Photos here Brasses and bronzes