If you chose to continue with 0.8:1 grout for this second period it is time to thicken to 0.6:1. Otherwise far
too much water is being injected.
However, if you were using 0.6:1 it would not be essential to thicken further for the next period, but it would
be best to do so.
It is necessary to decide what to do next. The choice is from one of the following: