Just got started in the irrigation side and do not wuite know how to charge. Here in Tn. people charge $45.00 for service call and the parts and labor. How do you figure the parts charge over cost. Is labor about $45.00 hour or am I out of line, high or low. I buy my irrigation stuff and let's say a Rotor is $6.78. Most people here charge $1.00 a foot for funny pipe. thanks for the insite.