mistcooling Industrial System - Max 1500 PSI Misting Pump - Stainless Steel Misting Nozzles - for Residential, Commercial, Outdoor Restaurant and Industrial Misting System Application (20 Nozzles)

I bought this pump to use for controlling humidity in my small greenhouse. The motor failed after 13 months (one month out of warranty) and the only solution from Mistcooling was to sell me a brand new unit for $900. They offered a 15% discount "for repeat customers," but I can't imagine buying another $900 pump from these folks given that their pumps can't be repaired and they don't last. They were also disorganized when I called them, don't actually service their own machines, and didn't return multiple support emails that they confirmed they had received when I called them.They got me. The motor is out of warranty, so I'm out $900. But, I think most people would assume that a $900 motor would last for more than 13 months of infrequent use and that the seller would find a way to make it right if it didn't. That's not what happened here, so I suggest taking your money elsewhere.Since it's out of warranty, I took mine apart to see what was inside and if I could fix it. It looks like an OEM/custom motor directly attached to a small 2-piston pump. There is also a small regulator / unloader that is adjustable with an hex wrench and an on-off power switch. That's it. I've attached some photos so you can see.There is no solenoid to prevent line pressure water from reaching the nozzles when the pump is off, no low-pressure cutoff switch on the inlet to prevent the pump from running dry, no easily adjustable regulator, no pressure gauge and no cooling fan. This is a bare-bones all-in-one kind of unit that is not intended to be serviced or maintained by the owner.On the plus side, this pump did work (at least for a while). The mist from the smallest orifice nozzles they sell was very fine and it created a cool cloud-like environment. Since the pump has no pressure gauge, I'm not sure if it was actually making 1500psi, but the pressure was high enough to drive the nozzles and the nozzles didn't drip despite the pump having no solenoid. The pump also very small and lightweight and is quite a bit cheaper than the belt-driven pumps that use commercial motors and pressure washer parts. It does not require oil (though I'm not sure how lubrication is supposed to work long-term, since it obviously has moving parts).On the negative side, the pump was way noisier than I expected. It was so noisy that it was annoying to be in the yard outside of the greenhouse while it was running. The motor is mounted on rubber blocks to try to isolate its vibration but the low frequencies carry anyway.There are two reasons for the vibrations: first, they used an eccentric bearing directly attached to the motor's shaft to drive the pump. The weight imbalance from the eccentric bearing naturally vibrates the motor at the speed of rotation. They mounted the motor on rubber feet to try to isolate it, but the low-frequency vibrations resonate in the box and carry anyway.Second, it uses a small two-piston pump to the motor. This pump makes its own noise and also pumps water in small discrete pulses. The plastic hoses twitch with each pulse and will transmit a strong buzzing noise to any wood surface they are attached to. I was able to eliminate the pulsing noise by padding the lines with weather stripping foam but I could not eliminate the motor and pump noise.Mistcooling also said they couldn't sell me a replacement motor with various excuses including me "needing to get an electrician to evaluate it," "not being allowed to touch the electronics," and "the pump unit not being made anymore." The "electrician" thing was supposed to scare me? Anyhow, I was hoping to find a motor replacement online (mine has a short in its windings despite no visible corrosion) but couldn't find anything like it after extensive searching and paging through motor manufacturer catalogs.I suggest looking for an alternative company that uses standard parts that can be replaced / repaired.