600' 1/2 Gal. Min. "What do you want to do"

[GaryQWA]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

With wells you really should never say never.... Especially when talking about recovery rates which historically always decrease with time simply from using the well in most cases.

Setting the pump that high off the bottom leaves a bunch of unusable water under the inlet. In dry periods, the static water level can fall fairly far and was it only 70' of water over the pump today?

Just an idea but if this were mine, I'd size the pump to be set at 15-20' off the bottom, or at least another 100' down. And yes it costs more until you have a dry well some day and have to replace everything at whatever price it costs then, which unquestionably is not going to be less than today's. Especially when today is new construction where you can get the right cable in to go deeper rather than add or replace cable then due to needing a larger gage due to the larger hp pump. And at least some of the cable is going to be buried which makes replacement expensive and tears up the yard and in some cases mature landscaping etc.. So maybe a next larger gage for the buried part? You can go to www.franklin-electric.com and look up cable gage distance charts under their installation section for single phase 4" motors.

Gary Slusser

 

[_RaT_]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

Very interesting Gary. I went to the site. I am still a little puzzled. I do want to learn more. I am gettintg ready to build and want to get my pressure tank up to the house which is about 40 or 50 feet higher then the well which is where the tank is now. I was thinking I would need a new and larger pressure tank, now, maybe not. Thanks for the links.

 

[FL_Cracker]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

Good info I will talk to the well man about your suggestion.

Thanks,

 

[GaryQWA]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

Moving the tank up to the house only increases the head of the system a bit; the friction loss in the water line material used and any additional elevation. The pump shouldn't have any problem with that distance as long as it is sized right to start with. You want the switch at the tank.

The size of the tank is dictated by the pump's delivered gpm. The motor manufacturers want the pump off between runs, based on the drawdown gallons, for 60 seconds for motors up to 1.5 hp. Meaning a 1.5 to 2 hp require 120 seconds off and larger require more. Otherwise you overheat the motor due to not enough time to cool between starts. That kills motors and costs more electric.

What do you want to learn more about?

Do you have a rock bore or fully cased and screened well?

Gary Slusser

 

[_RaT_]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

Gary, I want to look into the cycle stop valve. Thats a new one on me. I don't know much about our well as it was drilled well before I bought our place. I was told the pump sits at about 90'. We live in a granite area so I would assume were in rock. The pump is 3/4 HP. I don't know what the GPM is, but it was determined that after running the pump for over 6 hours with the union opened up dumping the full amount of pumped water on the ground by the water testing company, it was putting out 20 GPM, the maximum capacity of the pump. The pump house is about 500' away from our house. It only supplies our domestic needs as we use pressurized ditch water in this area for irrigation. Basically its water straight out of the river from higher up.

 

[GaryQWA]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

So if I am reading you right, you want the tank moved by 500' and 40-50' higher. Off the top of my fast aging head... that probably is a problem for the present pump. Should I be seeing a new house that much farther than the present house? If not then the pump is already delivering water that far.

Gary Slusser

 

[_RaT_]

Re: 600\' 1/2 Gal. Min. \"What do you want to do\"

Gary, the present system is fine other then the reading at the gauge down at the pump being a bit higher then what we actually get at the house (for obvious reasons). Thats a minor issue but I would still like to investigate the cycle stop valve and consider implementing it when I move the pressure tank to the new house/garage. It's an interesting idea and one that may work for another application I have elsewhere. The existing home is a mobile home that will be done away with. Thanks for the information, Rat..