Coolingmist meth pump failed again whats better?

My 1st Coolingmist 5800 DDP failed just under 1year,now have a 5800ddp 1.3 gpm pump and is starting to fail,its a year & 3 months old.is there any better meth pump out there?Thought about trying the Devils own,its 300 psi but at 1.0 gpm.Is the 1.3 gpm that much of a difference over 1.0?