Replaced three water pumps within one year. Need help. Any suggestion is appreciated.

[qingdoudou]

You're absolutely right. It is the restart delay. Following the instructions, I increased the sensitivity.

I did not increase it to the maximum to avoid being too sensitive. Thank you.

 

[qingdoudou]

Hello Reach4​

Regarding the flow inducer sleeve, I found this instruction (https://www.tuhorse.us/pump-sleeves/) and a YouTube video (

). As you said, it is easy to have one. However, in the video comments, multiple persons believed that the sleeve would restrict the water flow to the pump intake. My well is 5-inch, and the pump is 4-inch. I am not sure whether I should install a sleeve. What do you think? Thank you very much.

 

[Sponsor]

 

[Reach4]

However, in the video comments, multiple persons believed that the sleeve would restrict the water flow to the pump intake. My well is 5-inch, and the pump is 4-inch. I am not sure whether I should install a sleeve. What do you think? Thank you very much.

I am glad you brought that up. I address that in https://terrylove.com/forums/index.php?threads/flow-inducer-sleeve.95740/

For 3-inch pumps, https://terrylove.com/forums/index....-minimum-between-flow-sleeve-and-pump.100705/ is a similar thread.

 

[qingdoudou]

Thank you for your explanation. My concern is the well is 5-inch. Installing a 4-inch inducer sleeve may not have a significant result, in addition to the potential problems mentioned in the YouTube video comments.

 

[Reach4]

Thank you for your explanation. My concern is the well is 5-inch. Installing a 4-inch inducer sleeve may not have a significant result, in addition to the potential problems mentioned in the YouTube video comments.

What is your concern? Getting the flow inducer down the well, or if the water flow around the motor will provide insufficient cooling, or what?

I did not watch your video to find that person's concerns. What concerns remain for you? Did you understand "annular space" and the table in the first link in post #23? Most people would wonder if the well throughput would be significantly impeded by the flow inducer, and the point was that the annular space would be bigger than the inside area of your downpipe.

 

[qingdoudou]

Sorry for the confusion. I mean the well is 5 inches, meaning that currently the pump/motor is surrounded by a 5-inch well casing, rather than open water. I agree that 4-inch flow inducer sleeve will increase the water flow downside, but the increase may not be significant compared to the current 5 inch well casing.

In the video comments, people questioned: (1) the sleeve pipe (4in SDR35 pipe sleeving a 3.75in OD pump) is too small. It restricts the intake. The sleeve should be large, such 6in. It is not practical in my case because my well is 5in. (2) Cutting and clamping the top of the sleeve to improvise a collar is asking for a future disaster. (3) The grub bolts at the bottom are another worry on a flailing pump.

In the first link in post #23, you calculated the annular space showing there is enough space between the motor and the pipe. Thank you for your explanation. In that post, the person asked for the pump in a lake, rather than a well.
"Using a submersible pump in a large tank or large casing, I understand the need to force a certain amount of water flow past the motor for proper cooling."
In that case, i.e., open water, I definitely agree with you that an inducer sleeve is necessary.

 

[Reach4]

In the video comments, people questioned: (1) the sleeve pipe (4in SDR35 pipe sleeving a 3.75in OD pump) is too small. It restricts the intake. The sleeve should be large, such 6in. It is not practical in my case because my well is 5in. (2) Cutting and clamping the top of the sleeve to improvise a collar is asking for a future disaster. (3) The grub bolts at the bottom are another worry on a flailing pump.

Are you still concerned with (1) using 4 inch D2729 or SDR35 pipe has a too-small ID? If so, let's address that one more intensely. Do you understand the "annular space" area vs the area of the drop pipe? It sounds like you don't buy into that. That one is fundamental before addressing the other two items in your list.

Those other two can be addressed then.

There is an actual concern: can the flow inducer fit past the pitless adapter slide shoe? Not with the 2-inch pitless described here:

Will a 2” Pitless Adapter have enough clearance to install a 4” submersible pump in a 5” and 6” well casing?

Let’s start by addressing the 6” well casing first. Yes, both the Boshart PA-200NL (2” NL Bronze) and the P-200-SS (2” 304 Stainless Steel) Pitless Adapters leave clearance of 4.5” in diameter as show

support.boshart.com

I have not yet found a similar page for a common 1 inch pitless adapter.

https://support.boshart.com/hubfs/undefined-Sep-29-2023-05-13-05-1413-PM.png

If I ever have to get my pump replaced in my 4 inch steel casing well, I intend to use a 3-inch SQ pump in a flow inducer. However my pitless adapter is a thru-way / clearway pitless, so it should fit fine.

 

[Fitter30]

Are you still concerned with (1) using 4 inch D2729 or SDR35 pipe has a too-small ID? If so, let's address that one more intensely. Do you understand the "annular space" area vs the area of the drop pipe? It sounds like you don't buy into that. That one is fundamental before addressing the other two items in your list.

Those other two can be addressed then.

There is an actual concern: can the flow inducer fit past the pitless adapter slide shoe? Not with the 2-inch pitless described here:

Will a 2” Pitless Adapter have enough clearance to install a 4” submersible pump in a 5” and 6” well casing?

Let’s start by addressing the 6” well casing first. Yes, both the Boshart PA-200NL (2” NL Bronze) and the P-200-SS (2” 304 Stainless Steel) Pitless Adapters leave clearance of 4.5” in diameter as show

support.boshart.com

I have not yet found a similar page for a common 1 inch pitless adapter.

https://support.boshart.com/hubfs/undefined-Sep-29-2023-05-13-05-1413-PM.png

If I ever have to get my pump replaced in my 4 inch steel casing well, I intend to use a 3-inch SQ pump in a flow inducer. However my pitless adapter is a thru-way / clearway pitless, so it should fit fine.

Pitless adapter comes out first and last to go in when serving the pump. Post 20 setup for pumpsaver. Qing pumpsaver needs to be setup by the well company and i would want sensitivity set up by dead heading the pump and takes 4 seconds to trip. Want voltage and amps. Post 11 is disturbing pump company not using the correct starter box. Also want a timer wired to contactor or motor starter that when the pump shuts off 3-5 minutes pump has to stay off.

 

[Valveman]

I am worried that the Littlefuse is just not sensitive enough. A pump in a low yield well should not run very long before the well is dry. If the Littlefuse is not sensitive enough to shut the pump off as soon as the well is dry it could run long enough to cause that kind of heat. It would have to run for quite a while to get that hot.

A flow inducer will help when there is water in the well to pump. But I don't think there is enough water in the well for the pump to run long enough to get hot just from top feeding. I think it is not shutting off when the well is dry.

Oh, and you have to be very careful of Youtube videos as they get more clicks for fake news than real news and therefore promote fake news. There are friction loss charts for different size flow inducers with different motor diameters, but they don't restrict flow as was said on the other thread. Youtube is just messing you up about that.

I use a 1" pitless in 5" casing so that a 4" flow inducer will pass the pitless without having to remove it.

 

[qingdoudou]

Thank you all for your patient explanations. I am not a well professional. That is why I asked for help here. I need some time to digest the knowledge you provided. Again, thank you, I really appreciate it.