Weed Control Spray Equipment - Problems to Avoid

Weed Control Sprayer brought in by client with numerous problems.  Some problems were big some problems were small.  When it comes to power sprayers, even the small stuff matters. 

As you can see in this photo, the transfer hose used has already split on this sprayer, after only a few month's use.  The plastic fittings are cheap and will not hold up in the AZ sun (notice the fitting holding the pressure gauge). 
The company that built this rig skimped on hoses and fittings (among other things) to cut costs.  Over time, the client did not save any money because these components had to be replaced. 

It is important when buying spray equipment that you know what you are getting.  Comments?