GROUTING AN EASY, FAIRLY AVERAGE, WELL BEHAVED HOLE
IF YOUR DECISION IS TO MAKE THE MIX THICKER
IT IS NOT A WISE DECISION
Thickening the mix to 1:1 is not a sensible thing to do when the hole is taking the grout so well. Any thickening
is liable to reduce the amount taken appreciably and could even lead to a blocked hole.