Jfharper
Member
I need to drop my 1hp sub, how close to the well bottom can I go? Casing is 6".
Thanks for the reply...right now I'm at about 15' from the bottom...problem is the well is going dry and I'm trying to buy some time so I can figure out what my options are. If I reduced the flow of the sub, could I drop it closer to to bottom...say like 10'?We like them no closer than 20'
We always use a flow inducer or motor shroud as in our area we set pumps a foot or two off the bottom.
Hey, thanks again for your kind assistance. Yeah, the YouTube video guy digs a shallow well with a water line and an air line attached to the base of his digging rig which is 1.25" sch40 pvc...he also made a drilling head out of either gal pipe that he cut to have teeth, of he welded drill bits to some metal end...he pushes down and twists to dig up the dirt/sand the water line puts it into suspension, and the air creates a bubble inside the pipe which pushes an amount of sediment water out the top of the pipe periodically.There is no sense trying to make the well deeper if you still have not utilized the 15’ below the pump that you already have. Lowering the pump 14’ might solve the problem. If there is junk in the bottom of the well, a pump with a shroud will suck it up. If there is no junk, you are good to go.
You would have to displace a lot of water to make the jetting action clean the bottom of the well. A large air compressor would work better than water.
Lowering the pump 10' will give you an immediate 15 gallons or so in a 6" well. Most of the time after that initial 15 gallons is used, you will still have the same problem.
Lowering the pump 10' will give you an immediate 15 gallons or so in a 6" well. Most of the time after that initial 15 gallons is used, you will still have the same problem.
I was thinking, if I'm going to pull the sub out and add wire, redo the pipe because it is sch40 glued, and do it right with sch 80 threaded with sch 120 couplers, and add a flow inducer, then maybe I should clean out the bottom of the well if there is more room down there below the sub. My well was rated at 35 gpm back when we bought the house in 1999.If you have 15’ of open hole below the pump, then you don’t need to clean anything out unless you want to add more than about 14’. Even if you do make it deeper, it will probably settle back to the same depth after time.
A Cycle Stop Valve would make the pump produce the same amount of water that you are using. So if you have a 10 GPM pump, and the well only produces 8 GPM, just use less than 8 GPM and the CSV will match the amount and keep the pump from pulling the well dry.
A Cycle Sensor is probably more important for you than the CSV. The Cycle Sensor will shut your pump off and save it WHEN you do allow the well to be pumped dry.
The local well guy told me that if the sub was made out of plastic in some areas then sucking up debris would chew it up...I didn't tell him that I had a 1hp pump...is there a danger of chewing up my pump with sucking up debris?There is no sense trying to make the well deeper if you still have not utilized the 15’ below the pump that you already have. Lowering the pump 14’ might solve the problem. If there is junk in the bottom of the well, a pump with a shroud will suck it up. If there is no junk, you are good to go.
You would have to displace a lot of water to make the jetting action clean the bottom of the well. A large air compressor would work better than water.
Is there a way to know what size thin walled pvc to get to make the shroud...3" or 4"? My sub is 1hp...I assume...I opened the control box and there was a small electronic thing with a label that read 1hp 230v. Are all 1 hp subs 4"? If mine is 4" would I get 4" pvc or larger like 5" or 4.5"? ThanksWe always use a flow inducer or motor shroud as in our area we set pumps a foot or two off the bottom.
I guess that was what I was thinking...but after reading you post it's not like this...is it more like amount of water readily flowing into the casing? So if that is being depleted, lowering the sub won't help...is it a matter of water production that is being lost?My guess is the OP thinks it's like lowering the intake in a lake, that he gets to draw the lake down an extra 15 feet, or that he is in a gravel formation and gets to draw down a larger cone of depression.
If you have a screened well in a sand formation, like it sounds like you do, there will be a great benefit to lowering the pump, even a little bit...much more benefit than just the storage of the casing. We have the same problem around here....water levels falling in the coastal plain anywhere between .25 and 2 ft per year....In most cases lowering the pump even a couple feet will alleviate the problem completely....As far as a shroud, thin wall 4" is what you want for a 4" sub.I guess that was what I was thinking...but after reading you post it's not like this...is it more like amount of water readily flowing into the casing? So if that is being depleted, lowering the sub won't help...is it a matter of water production that is being lost?
....In most cases lowering the pump even a couple feet will alleviate the problem completely....As far as a shroud, thin wall 4" is what you want for a 4" sub.