Water Service Line Connected to Well - Questions

[Xfaxman]

When I redid my pond system a few years ago. Everything I found said pressure switches should be as close to pressure tanks as possible. And if more than one pressure tank as close to center as possible. This helps prevent short cycling the pump. Especially if pump is on the upper end of range for pipe size.
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How much different will the pressure be at the pump and at the tank, if they are 150 feet apart?

I am thinking about adding a second pressure tank upstairs in the house.

 

[farmer2009]

How much different will the pressure be at the pump and at the tank, if they are 150 feet apart? I am thinking about adding a second pressure tank upstairs in the house.

From what I remember it wasn't an issue of pressure difference but a short cycle of the pump. Pump kicks on surge of water is great enough for pressure switch to turn off pump. Water flows to pressure tank. Tank bladder expands. Pressure drops pump comes back on. Repeat. And you wouldn't be getting full draw down of pressure tank because it wouldn't fill completely.

Now do you already have a pressure tank? If so add new tank beside old one. Double draw down. And make fewer longer pump runs. May not need to move switch to do this. I have two large pressure tanks. Each has about a 35 gallon draw.

I wouldn't want two pressure tanks on different elevations because the weight of the water would add pressure to lower tank. And if that's where switch is you won't get full fill of second higher tank, nor full draw.

 

[Xfaxman]

From what I remember it wasn't an issue of pressure difference but a short cycle of the pump. Pump kicks on surge of water is great enough for pressure switch to turn off pump. Water flows to pressure tank. Tank bladder expands. Pressure drops pump comes back on. Repeat. And you wouldn't be getting full draw down of pressure tank because it wouldn't fill completely.

Now do you already have a pressure tank? If so add new tank beside old one. Double draw down. And make fewer longer pump runs. May not need to move switch to do this. I have two large pressure tanks. Each has about a 35 gallon draw.

I wouldn't want two pressure tanks on different elevations because the weight of the water would add pressure to lower tank. And if that's where switch is you won't get full fill of second higher tank, nor full draw.

Our system is a little different, can't add a tank beside the old one. The pressure tank is in the 8" well casing. The pump is controlled by a Cycle Stop Valve.

Here is the thread, where I typed 6", it should be an 8" casing. http://www.tractorbynet.com/forums/...ell-pump-monitor-post3196547.html#post3196547

 

[turnkey4099]

How much different will the pressure be at the pump and at the tank, if they are 150 feet apart?

I am thinking about adding a second pressure tank upstairs in the house.

I've been sorta following this. Question: What advantage is there to having the pressure switch at the well? I can think of none. Ive worked on several well systems and seen more. All have the pressure switch at the tank.

Harry K

 

[Xfaxman]

I've been sorta following this. Question: What advantage is there to having the pressure switch at the well? I can think of none. Ive worked on several well systems and seen more. All have the pressure switch at the tank.

Harry K

In our case, it is that is where the power was. The well was put in a year before the house was built.

 

[farmer2009]

Our system is a little different, can't add a tank beside the old one. The pressure tank is in the 8" well casing. The pump is controlled by a Cycle Stop Valve. Here is the thread, where I typed 6", it should be an 8" casing. http://www.tractorbynet.com/forums/rural-living/271589-water-well-pump-monitor-post3196547.html#post3196547

To be honest, I don't know. You might want to ask one of the drillers here.

If it was mine, I would look into putting a pressure switch where the new tank went and doing away with the one in the well. Like I said that would be me.

 

[Xfaxman]

To be honest, I don't know. You might want to ask one of the drillers here.

If it was mine, I would look into putting a pressure switch where the new tank went and doing away with the one in the well. Like I said that would be me.

Since the pump is wired to the original breaker box at the well, it would be a lot of work and expense to come from the breaker box in the house, to the switch at the new tank and out to the well.

I think the cycle stop valve bypasses the inwell tank until the flow stops, then it fills the small tank and shuts off. So maybe the second tank wouldn't work.