Homemade submersible pump - white smoke
I posted this topic: http://www.instructables.com/community/Outdoor-water-fountainhow-to-silence-homemade-p/ and both repliers suggested that I get a submersible pump. Being in Egypt, I can't find one unless I pay ridiculous amounts of money.
So, I made one using a handhelp air blower.
It works, it gets the water up to the 10-12 feet easily. It is waterproof. No leaks. (There was a small leak before revising, but now none)
I've only had it on for a max of 30 seconds for testing. At about 30 seconds, when I pull it out, the box is filled with white smoke. Smells almost like electrical burn but not quite. What would be the causes of this?
Is the water too much strain on the motor to turn?
Is there maybe some water droplets that were just burning off?
Is my pvc pipe enough ventilation for the motor as it does get hot, but I don't know how hot is too hot?
Could I use a dimmer switch to turn the motor down some, would that not put so much strain on the motor instead of having it at full speed?
Sorry for so many questions.