Well pump issues

Well pump replaced now having issues with pressure

my well is not marked but i think it is around 250'

1 Replaced my well pump with a 3/4 hp 10 gpm Myers pump same as the old one just 15 yrs newer i also installed foot valve on pump
2 Replaced my pressure switch. from a 30/50 to a 40/60
3 Replaced pressure gauge
4 Set the pressure tank to 38lbs the std 40 - 2 theory
5 to get the pump to shut off i turned the pressure switch down until it kick on and off it is about a 20/40 setting

I cant get enough pressure to shut the pump off it gets to about 30lbs pretty quick and then it slows way down and finally shuts off at around 40

we pulled the pump and plugged the pitless adapter and lowered the pump just untlil we hit the top of the water turned it on and we didnt see any leaks.

PS. not looking fwd to pulling pump again, did it by hand 4x in 3 days, my arms are dead. could it be possible my new pump is deffective.

What is the exact model of the new pump and how deep is it to water in the well?

With the pump curve data for the model of pump, and depth to water, we can determine how much pressure the pump should produce. Then it will be possible to suggest causes of the problem.

Many (most?) submersibles have a check valve in the pump. Where did you install a "foot valve"? Or did you install a check valve in the outlet?

the model is R202A

it is under about 200' of water i can see the water when i look down my casing

i put the foot valve on top of the pump

R202A must be a Big Box store model number. There is nothing in the Myers catalog with a model # like that I am aware of.

Why did you put a "Foot Valve" (probably check valve) in the pipe above the pump? The pump comes with one built in.

I'm not sure how you did this test, could you explain it in more detail?

bob...

I got the pump at lowes the box says waterace but the pump says Myers try this part #23218D500

I just took the foot valve off the old pump and installed it just like it was before my Brother said that the pump has one but it is not a bad thing to have 2 valves

we pulled the pump and plugged the pitless adapter with a c clamp and a piece of wood and lowered the pump just untlil we hit the top of the water turned it on and we didnt see any leaks. when we removed the clamp there was pressure there because i got soaked.

Shaggie30 said:

I got the pump at lowes the box says waterace but the pump says Myers try this part #23218D500

we pulled the pump and plugged the pitless adapter with a c clamp and a piece of wood and lowered the pump just untlil we hit the top of the water turned it on and we didnt see any leaks. when we removed the clamp there was pressure there because i got soaked.

Click to expand...

http://www.waterace.com/well_1.html

Your pump is a model R202A. It is supposed to deliver 9.4 GPM at 40 psi when installed in a well at 150 ft to water. (See chart at link) It will deliver 9.4 GPM at 50 psi from a well at about 127 ft to water. It will deliver 9.4 GPM at 60 psi at about 104 ft to water.

If you want to get 60 psi and you are 100 ft or more to water you don't have the correct pump.

1. How much farther did you lower the pump after it hit the top of the water? A pump should be set well below the top of the water.

2. Turning on the pump with the flow stopped by the C-clamp was the wrong thing to do. That caused the pressure in the line to equal the total pressure capability of the pump, which COULD HAVE split the pipe, or damaged an impeller of the pump if you let it run any length of time.

Either a split pipe or damaged impeller would cause the pump to fail to deliver pressure.

If you didn't lower the pump far enough into the water it could be running out of water, which could also cause damage to the pump.

If your brother the pump expert owns a clamp-on ammeter he can measure the current in the wires when the pump is running. If the current is significantly greater than the rated current for the pump, then you probably have a leak. If the current is significantly less than the rated current then you probably have a damaged impeller.

ok with that said what size type or brand of pump do you recomend.

We can't give you an answer about size/model of pump until you tell us the depth to water when the pump is pumping down.

Also, tell us how deep the pump was set. In other words, how much pipe is there between the pump and the top of the well. If you have at least 175 ft of pipe between the pump and the top of the well, then you have enough pipe to utilize the full capacity of the pump. If you don't have that much pipe you may run out of water in the well before you reach the limit if capability of the pump.

You said it is under 200 ft of water, which suggests that you have 250 ft of pipe with the water within 50 ft of the top of the well. If that is the case the pump should produce more than 60 psi. The question then is; how far down is the water when the well is pumping? If the well doesn't produce enough water to keep up with the pump, that could be the reason that the pump fails to produce 60 psi.

It may be that your pump model will work but there may be a problem with having started it against a closed pipe.

Bob NH said:

We can't give you an answer about size/model of pump until you tell us the depth to water when the pump is pumping down.

Click to expand...

Bob, IMO it's a rare well that has a pump test before sizing the pump. You can size the pump from like 10'-20' off the bottom and it doesn't matter how much water is in the well or the pumping depth. His present pump is too small for that.

I too think he's damaged the pump by overheating the pigtails or broken something in it or he has a leak. And I don't think the added check valve was a good idea either.