(You already know this info...)
keep-aluminum-and-brass-separated-in-the-marine-environment
I am not in a marine environment, but do not see how you can avoid salts in any water.
Yes, I didn’t think several weeks would result in a total lockup, and IIRC I even used some anti-seize on the joint, but, our well water has a lot of “stuff” in it. That somehow adds up to it tasting good except after heavy rains that apparently get surface water down to the water table quickly, but it’s heck on plumbing and hose connections.
Then again, the chlorine in my Mom’s city water would eat up things like seals in toilets (the flapper valve, for example.) We have relatively little problem with that, but, a metal lever might corrode away after a few years...
In this particular case I now have a really long hose, part of it 3/4” and part of it 5/8”. I really wanted to use the 3/4” hose somewhere else where it’d be just the right length. I may have to cut off the female Aluminum connector - which reminds me Menards may still have the little cutting wheels for Dremel tools on sale. I need to get over there anyway...
Argh - it looks like the innards of my primary 4-way splitter are failing too. The line / shutoff used heaviest (out to the garden area) now won’t open to more than a trickle. I had to swap that line to a different “out” — the one to the incinerator, which incinerator (55 gal steel barrel) is now useless as we just got a burn ban put in place until we get a good soaking.
Funny that I was planning on making a better splitter anyway. My timing is good for once!