I put all 20 bags of 30 min concreat. Two trips. First 10 covered
rebar reinforcment and last 10 covered them flat, but did not reached
top. That is fine actualy. Instead of renting mixer I got nice plastic
borow and got extra shovel for like 10 $. That worked good and cost as
1 day rent if mixer. I am going to use same setup for mortar and then
still keep for my garden. I tried to put more water to last layer and
may be it is not perfectly even and too much . I tried to make it
flat, but some water acumated in some areas. I hope it will cure nice
and will not bite me in the ass!