Well not a nightmare for me, but for the customer it is. Heres the situation. We have a customer that we do some basic maintenance and installation work for. We have been taking classes, reading, etc. on irrigation. The customer has two commercial properties that have drip irrigation all through the beds. The system is about 3 years old and has major problems. First there are no zone kits from netafilm installed. Instead the other contractor just plumbed in cheap toro valves right off the supply line. The local water pressure varies from 75 to 85 psi. So fittings blow off over time and leak water every where. Second, there is an entire area @ 150' of drip that was layed but never hooked up to water. The only way they got away with this is because of the type of plants in the area. Too much trouble to bore under 10' of sidewalk I guess. Third, the poly fittings used to connect the pipe is not the ones from netafilm, so they seem to not grab as well and they come apart, could just be the pressure. So here is were I need your help. I plan to put in two new zone kits from netafilm to replace the toro valves. They come with pressure regulators. I also will have to bore under the sidewalk mentioned above and connect the nonfunctioning area. We have redone one bed with all new plants and will relay @ 250' of drip pipe. So does this sound like a good approach to the problem? I kinda feel bad for the customer they already will be paying out alot on this job without all this extra expense. So do I just hard nose it and charge them the usual rate? We have already spent @ 5 hours messing with this thing. And finally what do you mark up your materials on a job like this? Sorry for the rambeling post.