Continued from (http://bradisdrab.wordpress.com/2014/07/29/pool-restoration-pt1/)
Once we got the old tiles knocked off and a couple rounds of pressure washing in it was time to see hom much cleaner it’d get by acid etching the surface.
Here I’ve started the acid wash,
I was just doing it by hand, using a spray bottle and scrub-broom,
After acid washing the whole thing, and continuing to remove old/bad/delaminated plaster, basically anything that sounded hollow, was stained/softer than the rest;