Quote:
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Originally Posted by Mark The pulsation you feel could be several things,
normally you can not feel the pulsation of
a triplex pump, (Alkota and All American use
pulsation dampeners on their 5 GPM and up
units.) can you see a fluctuation in pressure
with a gauge? If not I would not be concerned,
if you do check your inlet line for restrictions or
air leaks.
As far as the pump getting hot? It may be normal,
what is the temperature of the crankcase?
Can you leave your hand on the pump while
running or is it too hot for that?
Sounds like your pump is pulling the water up
2' to your inlet? You could easily put a prime
valve on this unit, simply install a tee at your
tank inlet and run a 1/4" line from the tee to another
tee at your pump inlet. Open the valve to prime pump
before starting! 
Hope this helps! |
I did some messing around with it today and heres what I've come up with.
I ran the machine directly from the spigot to see if this changes anything. The rapid pulsing was not nearly as bad, it sprayed much smoother and with a bit more power. When I reconnected to the tank the rapid pulsing and vibration returned. I know its not an air problem because I checked all of the fittings and everything is tight and solid. Could this pulsing possibly be caused because of having such a small reserve tank, maybe not enough water weight pushing down to help force the water out of the hose.
The pump still became very hot after about 5 minutes of spraying whether I ran from the spigot or tank. I don't know if this makes any difference, but the brass part of the pump is not hot at all, its just the crank case part. I don't know if this is of any help for diagnosis.
Any more ideas or help?