My new slab butts against the old footer of the old slab.
The cement was just poured up to the footer.
It is jagged and has gaps.
There is dirt in the gap.
It does get moist with heavy rain.
Dirt just turns color. No water ever comes out.
I want to put a wall directly over this area.
I think I should seal this area of the floor?
Ayuh,.... What I'm seein',...
I'd hose it down, 'n flush out the crud,...
Then work my way down through it, trowelin' in/ on hyd. grout to true, 'n level it...