What well pump would you buy and why?

bunkerhillmine · Aug 23, 2009

I need a pump. 300', 10GPM. I prefer a 3 wire, but that is open for suggestions too.

4" submersible.

Thank you,

Jim P

Valveman · Aug 24, 2009

Not much difference in quality of pumps anymore. You need about a 1.5 HP, 10 GPM pump, 2 wire or 3 wire doesn't matter. Try places like Sears, Grainger, I even saw one on the ***X store for less than 200 bucks.

Sponsor · 2022-01-29T12:20:58-0800

Gary Slusser · Aug 24, 2009

bunkerhillmine said:
I need a pump. 300', 10GPM. I prefer a 3 wire, but that is open for suggestions too.

4" submersible.

Thank you,

Jim P

I take it the well depth is 300', not the static water level in the well, right?

And how do you know you only need 10 gpm? Or is that the recovery rate of the well? If so, what peak demand flow rate does the house require?

What pressure are you going to operate it at?

What is the elevation from the well to the highest fixture in the house?

NHmaster · Aug 24, 2009

I prefer three wire to two, no clue why, I just do. I think they hold up a little better but I have no empirical data to back that up. I use Goulds because that's what my supply house sells and they have been good to me over the years.

Gary Slusser · Aug 24, 2009

I like 2 wire pumps too. There are a number of reasons.

bunkerhillmine · Aug 24, 2009

Well depth is 300'. 10GPM is what we have on another well 300' from this one and for what we use it for, that works fine ( it is a mobile home) . The height difference from the top of the well and the highest fixture in the place is about 6'. I like higher pressure, about 60 psi works fine for me.

Teets · Aug 25, 2009

The first well being 10 gpm doesn't mean that this other one is the same. Do you have a well completion report that shows what the well is producing, and what are you using it for.

bunkerhillmine · Aug 30, 2009

Yes, 10gpm.

JimP

Gary Slusser · Aug 30, 2009

Is the well recovery rate 10 gpm, or do you have a 10 gpm pump?

Gary Slusser · Aug 30, 2009

What size pump do you suggest Upper.

Upper · Aug 31, 2009

That is my point Mr Slusser,size does not matter,he is looking for a recomended brand not a water treatment system......Upper

Valveman · Aug 31, 2009

He did say 300' and 10 GPM. That is why I suggested a 1.5 HP, 10 GPM pump. This will give you house pressure of 40/60 plus lift 300'.

Gary Slusser · Aug 31, 2009

upper said:
That is my point Mr Slusser,size does not matter,he is looking for a recomended brand not a water treatment system......Upper

Your point, I didn't see a point other than attacking me personally, because I couldn't understand what you meant. I see the post ihas been deleted.

The hp AND gpm size of a pump certainly does matter. So does the peak demand gpm of the building which the OP hasn't actually said what that need is yet, so IMO no one can size a pump for him but.... Valveman answered as to what brand.

The OP also later said his other well has 10 gpm, does that mean a 10 gpm pump or a 10 gpm recovery rate of the well?

And if it means a 10 gpm pump, why ask what brand to buy when he has one in the other well that works fine? I would buy the same size and brand. And if he doesn't know the brand in his other well, what difference does brand make?

Anyway, where do you see me saying anything remotely able to be considered as having anything to do with water treatment?

And why aren't you answering the OP with a suggestion of your favorite brand of pump instead of attacking me?

Upper · Aug 31, 2009

My point is Peak demand has nothing to do with the original posters question,Nor does peak demand have anything to do with well production.Anything under 3 horse is Goulds anything 3 .to 5 horse Grundfos.I got to go now and tell my well how much water my building needs.Now I am going to ask it nice as not to do it in an attacking way.You got to be nice to your hole or it will not produce

Upper

NHmaster · Aug 31, 2009

Hey Valvman, I agree wid ya.

But for those that care; If you know the depth of the well, the static level of the well and the recovery, all you need to do is get on goulds web site and run down the chart to select the right pump. It ain't rocket science. As a general rule of thumb. when you don't know any of the above, put back in what you pulled out because chances are the well guy knew.

watrax · Sep 1, 2009

knowing the HP and GPM of pump and Elevation Head. my question is how to determine the discharge pressure at the pump?

NHmaster · Sep 1, 2009

Consult the pump chart for the manufacturer of the pump

Gary Slusser · Sep 1, 2009

watrax said:
knowing the HP and GPM of pump and Elevation Head. my question is how to determine the discharge pressure at the pump?

You won't find that on a pump chart. You need to calculate the TDH and convert that to psi. and the TDH varies with the water level in the well.

Why do you need that?

Gary Slusser · Sep 1, 2009

nhmaster said:
If you know the depth of the well, the static level of the well and the recovery, all you need to do is get on goulds web site and run down the chart to select the right pump.

I've never seen any reference to the the recovery rate of a well on any pump charts but why do you need to know the recovery rate?

Upper · Sep 1, 2009

Recovery rate is what the well produces.No more no less....Upper

What well pump would you buy and why?

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