whats your thoughs on this customers 3"pipe and reducer i told them of the risks they laughed and said press on we ve done this lots of times befor

i did it with the line pump a hook running 3/8 grout. nine foot walls, three lifts. no blow outs. but to answer your question some times a customer does know his business. but i have heard of people wanting to use the wrong material, stupid and a vibrator tits out. i tell people let me fill it and stay back so you will not slump because iam not coming back to do it a second time. simple put it in turn it on then off and pull it out.