At a loss - Damp line on outside brick

[Toilet-Duck]

If dry, I'd say stained. But, what caused it in the first place? You mentioned a socket full of water - was the source of that found?

I wasnt sure if it was caused by a blocked gutter, in the original photo (https://i.ibb.co/K2nj0PS/brickorig.png) you can see a dip above where the water may have possibly overflowed when blocked?

Is there anything I can try to try and remove the stain from brick if it is this? Im worried if I try to sell in future that people are going to quetion the stain/mark as I certaintly would as a postential buyer.

 

[JohnD]

Ivy.

 

[mattylad]

Banksy.

 

[JP_]

I wasnt sure if it was caused by a blocked gutter, in the original photo (https://i.ibb.co/K2nj0PS/brickorig.png) you can see a dip above where the water may have possibly overflowed when blocked?

Is there anything I can try to try and remove the stain from brick if it is this? Im worried if I try to sell in future that people are going to quetion the stain/mark as I certaintly would as a postential buyer.

Don't worry. People won't notice, if they do, just say the gutter leaked one winter but fixed years ago.