About To Drill Well - Have Some Questions

[Valveman]

Nope. Call it an inline two way bypass.

Well I don't care what it is called, I would just like to know how it works. If you drill holes in the motor stator or rotor, the motor will no longer work. I have heard of drilling a hole in the top of the pump case on gassy wells, but not to reduce the flow rate. Please explain how it works.

 

[Egon]

Rotor = rotating impeller
Stator = fixed internal between each stage

These parts are in the pump, not the motor.

Some terms do get interchanged.

 

[Valveman]

Sorry but I have never heard them interchanged like that. To me the Rotor is the spinning part of the motor. Stator is the copper winding and the motor laminations. The spinning parts of the pump are called impellers, and the non-moving part of the pump is called a diffuser or bowl in larger pumps.

Of course drilling a hole in the pump housing and diffusers would let water out of the pump and decrease the amount the pump can produce. But it would be a set amount, and not be able to vary the output of the pump to match the usage. Plus it would stir up the well, possibly even drill a hole in the well casing, and cause upthrust on pump start.

The pump is not always too large. Sometimes we need maximum flow. But sometimes we just need a little flow, and constant pressure controls such as a VFD or CSV will vary the flow from the pump to match the usage.

 

[Egon]

Didn't say it would be variable. Water all stays inside of pump casing.

 

[Pettrix]

I am leaning towards a FRANKLIN pump system called the SubDrive20 Constant Pressure Pump System QuickPak.

One quote came in at $4,200 installed with a 5-year warranty.

Any input on this pump system?

 

[bdog]

What are your plans with the water? If just a house that is plenty of pump but if you want to do any large scale watering you may want to go bigger. We have a 8gpm well for our house and it works fine but we drilled another last year and it tested to 75gpm and has a pump for 50GPM. The drilling, completing, pump, etc was around 11k but they only drilled to around 150' though it was a 24" hole if I recall correctly. I know they dumped nearly a whole dump truck load of gravel down the hole when doing the gravel pack as the hole was huge. Mine is set up on single phase. Got an estimate of 17k to run three phase to my place.

I had the well drilled over a year ago, built a pump house for it and ran the electric over there but I have been too busy to run the water lines so I have not even really used it yet.

 

[Pettrix]

What are your plans with the water? If just a house that is plenty of pump but if you want to do any large scale watering you may want to go bigger. We have a 8gpm well for our house and it works fine but we drilled another last year and it tested to 75gpm and has a pump for 50GPM. The drilling, completing, pump, etc was around 11k but they only drilled to around 150' though it was a 24" hole if I recall correctly. I know they dumped nearly a whole dump truck load of gravel down the hole when doing the gravel pack as the hole was huge. Mine is set up on single phase. Got an estimate of 17k to run three phase to my place.

There will be TWO homes on the property but only one being built now. So the pump has to supply water for 2 homes in the future.

I plan on doing some irrigation for native and planted trees. Maybe also a pond in the future. That's why I am leaning towards the 20 GPM pumps since a 10GPM pump split for 2 homes will only drive 5GPM at ideal conditions.

 

[bdog]

In that scenario I would go with the 20GPM and get a pressure tank and one of these Cycle Stop Valves, Inc.

 

[Pettrix]

In that scenario I would go with the 20GPM and get a pressure tank and one of these Cycle Stop Valves, Inc.

I got priced for the Goulds pump with 119 gallon pressure tank ($1k) and it came out to $6k total.

The Franklin constant pressure pump with controller came out to $4k

 

[Pettrix]

In that scenario I would go with the 20GPM and get a pressure tank and one of these Cycle Stop Valves, Inc.

I got priced for the Goulds pump with 119 gallon pressure tank ($1k) and it came out to $6k total.

The Franklin constant pressure pump with controller came out to $4.5k

5-year warranty on the Franklin pump and controller