Replacing a jet pump

[Tom E]

I am replacing my 44 year old Goulds 1/2 hp. deep water jet pump with a Goulds J5+ convertible pump. The old pump has a pressure regulator at the discharge. I would like to get something the same or similar but I can't seem to find one. The closest I can find is the Goulds AV1 water pressure regulator but the literature for that doesn't say it's for the J5+. I have limited space so what else can I use here?

 

[Tom E]

Another view.

 

[Sponsor]

 

[Valveman]

I think that or the AV22 are your only choices.

 

[Tom E]

Thanks. I have decided to use the AV22 regulator. I will have to figure out where to install the pressure gauge though. The new pump doesn't come with the 2 fittings that attach the pump to the well hoses. I'm not sure what these are called or where I can get them.

 

[Reach4]

I don't know what fittings you need, but they can be called insert fittings or barbed fittings.

You normally want brass, and the size for those most commonly used in well work is specified by ASTM D2239 for SIDR pipe.

 

[Tom E]

Thanks.

 

[Tom E]

I have pretty much everything I need now. Should I use Teflon thread sealant (Not tape) on the barbed connections or just the 2 clamps on each connection?

 

[Tom E]

I'm planning on using the water in the water tank to prime everything by leaving the gauge off and cracking the valve to the tank until the water flows out of the gauge connection. I hope that works.

 

[Valveman]

Warm the pipe to slip over the barb fitting, but don't use anything on the barbs. The Teflon goes on the threaded end only.

 

[Tom E]

Thanks I thought that would be the case. I used Teflon tape with a coating of teflon sealant on top for all the male threaded fittings. I was wondering how it is going to be disconnecting the plastic pipe from the old pump since it's been on there for 44 years. I'll keep a heat gun handy.

 

[Tom E]

Thanks for the replies. The new pump is in and is working great.

 

[Tom E]

The old Goulds pump had a place to lubricate the motor. The new one has none. Do these require no lubrication over their life?

 

[Valveman]

The old Goulds pump had a place to lubricate the motor. The new one has none. Do these require no lubrication over their life?

LOL! That is the difference between stuff that was made 44 years ago and stuff that is made today. 44 years ago they used grease-able bearings,and if you greased them once a year they would last 44 years or longer. New pumps/motors have sealed bearings that cannot be lubricated. They have a set number of hours they are built to survive, then you will need a new pump. Anything that last 44 years will get redesigned with planned obsolescence as the key design factor. The pump in the famous fountain is Chicago were the "Friends" show was made has been working since 1927. They can make pumps to last a long time if they want. They just won't make as much money unless they switch to a sealed bearing or something else and purposely shorten the life of the pump/motor for you.

 

[Tom E]

I do know that about everything built today. Built to fail. I would not have replaced the old pump but it was starting to run loud and taking much more time to fill the expansion tank. One thing I noticed when I pulled the old one out was how much heavier it was then the new one. At least if I ever have to replace it again I will know exactly how to do it.