I work with hot plastic on the roads.. we put down a 4" 120 mil line ....for old specs. I had to multiply LF by .31 then devide by 50 and that would tell me how many bags I should have used. .31 was for .90 mil..
But for the life of me I can't figure out for the 120 mil conversion... Ok, Lets say I put down 5280 feet of 4" line at 120 mil how many 50lb bags did I use?
Thanks for the help