On Thu, 21 Feb 2019 10:09:25 +1100, cantankerous trolling senile geezer Rot
Speed blabbered, again:

Neither will dissolve tile or brick dust. That¢s why they don¢t
damage the brick or tiles when cleaning the mortar residue off.

Vinegar is safer but takes longer . That ehow link is pretty much useless
for anything but fresh residue that hasn't cured yet .

Brick and tile dust doesn¢t cure.

Darn! And this innocent little thread was Rot-free, so far! tsk

--
Archibald Tarquin Blenkinsopp addressing Rot Speed:
"You really are a clueless pillock."
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