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Mystery (well pump) continues
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Judy in NC    Posted 08-31-2004 at 08:48:35       [Reply]  [Send Email]
I removed the ejector and the cover over the impeller AGAIN.

Both are absolutely clear. I removed the venturi from the ejector and removed the little jet that sits behind it so that I could take a really close look at it - it is completely open; no build up on it at all.

On the impeller, there are no signs of wear, and all the channels are completely clear.

I have water up to the top of my casing, and with the system pressured up from my city water there are no leaks. WHERE could I be getting air to cause the motor to cavitate?

There is still no suction out the single outlet side of the ejector.

I have left another message with my local pump repairman asking him to please come when he can.

I am still at square one after all these attempts at figuring this out.

Thanks for everyones patience, encouragement, and suggestions.

Judy in NC

Judy in NC    Posted 08-31-2004 at 22:19:20       [Reply]  [Send Email]
Thanks to all of you who continue to share your thoughts. I was out all evening - I definitely wasn't ignoring your attempts to help.

Judy in NC

George in TX    Posted 08-31-2004 at 15:15:52       [Reply]  [No Email]
Judy I've been following this pump problem from square one and I've no clue how to solve your problem, sure wish I did. I just wanted to say that I admire your persistent and "Get-R-Done" attitude. I'll remember to never stand in your way. You're sure to get around me somehow.

I'm glad someone asked about electrical changes as I'd thought of that too. My first thought was the motor may be turning backward for some reason. Then I decided that was pretty far out in left field. I have zero experience with this type of pump setup but I'm betting the motor runs on 110 or maybe even 220 volts. In any case it's a single phase motor and reversing the motor direction would have to be done deliberately by changing wiring connections inside the motor. That's not likely I'm thinking.

However the motor may not be running at normal speed. Some small motors use a starting capacitor to get it running. If the capacitor is bad the motor will start but won't run at full speed. The capicator may be in the panel that controls the pump or it may be on the pump itself.

I'm hoping someone more knowledgeable about this type of pump will pick up on this idea and explore it further.

toolman    Posted 08-31-2004 at 15:33:43       [Reply]  [No Email]
i asked about the wiring george and im also wondering about motor speed , if it is getting up to a high enough speed to actually pump, just grabbing at straws again , this pump isn,t used much could the insulation breakdown in an older pump while not bein used and when you use it again it,s not getting up to a high enough rpm, ? dunno

George in TX    Posted 08-31-2004 at 15:57:19       [Reply]  [No Email]
Toolman I'm grabbin straws out of left field here too. My experience is mostly with large (up to 300hp) 3-phase motors. I'll bet you've seen the wiring on the inside of an electric motor. The insulation on the copper wiring is just shellac or something similar. If a short develops between windings it'll cause heat buildup and melt the insulation from surrounding windings. Very shortly there's many windings shorted and the motor is shot. If the motor is running at all then I'll bet that's not the problem.

I'm leaning towards the start capacitor at this point - *IF* there is one.

toolman    Posted 08-31-2004 at 12:31:48       [Reply]  [No Email]
im starting to wonder about your pump, is it working , is it running fast enough to pump, did you try removing or checking that the venturi is positioned in the right place , the right way etc. sorry i had to ask, course ya one thing you,ll know your way around pump systems when this is all said and done.

Texas    Posted 08-31-2004 at 08:53:59       [Reply]  [No Email]
Where is your foot valve (check valve)at pump or down hole? This could be hung, not allowing water to enter pump.

Judy in NC    Posted 08-31-2004 at 11:03:24       [Reply]  [Send Email]
At the bottom of the pipe. It is new as is much of the system now. It is holding pressure, but as you suggest, it could be stuck shut. (Even new ones are sometimes bad.)But my hunch is that there is a problem with my ejector, based on the symptoms shared in my other posts.

Thanks for your inquiry.

Judy in NC

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