old McDonald deep well jet pump

Eltorro

Eltorro

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Does anyone have information
on a McDonald pump installed about 1972..the model number on the pump
itself is 4651..the motor is 1/2 hp..It would be great if I could find
out to what depth this model was capable of
pumping. It seems that this unit was part of the 4600 series .

It isn't practical to uncover the well at this time and I'm trying to determine
what it should be replaced with. Well is 175 feet deep but I have no idea how far down the jet/foot valve goes..could be just 50 feet.who knows?
 
When I get back to my shop I can look it up for you. I'm in the process of possibly taking on their product line. I have the catalog and can look up the pump. The big thing is; is it a deep well jet or shallow well jet pump. A one half horse pump won't go very deep.

bob...
 
It is 1/2 hp motor and 2 pipe system.
I assume if the well is 175 ft deep it is a deep well pump.
The pump is very old..I hope you can find the details so I am able to replace it with the proper pumping capabilities. I just need to know how deep this model was good for.
Rich
 
The well depth has nothing to do with it. It's the water level that counts. I Would say 50 feet is probably the limit for the 1/2hp.
bob...
 
Last edited by a moderator:
Don't they attach larger pumps to the motors as the hp increases?
I assume you could find no details on McDonald ..
Rich
 
If I do pull the old pump will the water stay in both lines for the most part?
Will I just need a modest amount of water to prime the new pump?
Rich
 
Been there done that but nothing on past models.
Thanks anyway.
Rich
 
They don't answer the phone, or reply to emails, or point you to a dealer? A check of a Goulds jet pump didn't show anything deeper than 90 feet for their half-horse pump.
 
I called and got prompt service..emails were ignored..
With jet jp708 the range was 30-50 feet...jp709 the range was 40-80 feet..
Thanks for all your help...
Rich.
 
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