We got rid of our cheap
brass seacocks a couple of years ago for Marelon ones (with the exception of the engine water
intake which had to be metal so became DZR). Marelon is not maintenance
free as you still need to watch for signs of corrosion
on the bolts but as trying to get genuine Bronze ones proved to be almost impossible due to the quantity of cheap
freshwater brass around I went with something I could trust not to corrode.
Top Tip: Freshwater brass or domestic plumbing
valves and fittings will not have CR embossed in them and will generally have red handles. DZR will have CR and Green handles. Not seen genuine Bronze so can't say what they have.
Sadly due to the inadequacies of the EU Recreational Craft Directive (RCD) stating that underwater fitments should last at least 5 years builders have been cutting costs and fitting the cheaper brass rather than more suitable alternatives. Brass may last 5 years but there have been cases of thru-hulls etc falling apart from de-zincification after a very short time.
Any of the online chandleries should be able to post you a ball valve to any EU country for a few quid
Originally Posted by SVTwilight
I replaced all my bronze seacocks with Marlon 9 years ago and never looked back. Much less maintenance and totally reliable. Just regularly use the lube the recommend.
What is the recommended lubricant? Is it Marelon specific or something generic?