Is this galvanic corrosion, or just a bad seal?

[Temp945]

I replaced my water heater supply lines just over a year ago. I just noticed that there is some corrosion forming around one of the hose joint connections.

I've attached a photo below. There is a tiny bit of water leakage at the hose joint - just enough that I can detect moisture with my finger, but not enough to drip or puddle.

Is this galvanic corrosion? Or is it just a bad seal? Once I know the answer to that question, then I can properly fix it.

My understanding is that galvanic corrosion occurs from dissimilar metals being in contact with water. But the nipples are steel and the hose nuts are steel. The nipples are also dielectric. So my guess is that this is not galvanic corrosion, but just a bad hose. What do you all think? Thanks for reading

 

[John Gayewski]

Looks like a tiny leak to me.

 

[Sponsor]

 

[Reach4]

Could the cure for that could be to turn that hex 1/4 turn clockwise, while countering the torque above the nut?

 

[Temp945]

Thanks everyone. You were all correct: it was just a leak. I was overthinking things (as usual) by worrying about galvanic corrosion.

As Reach suggested, tightening by 1/4 turn (and being careful to not also turn/torque the hose above) appears to have solved the problem.