Previous in Forum: CFM measurements   Next in Forum: Additional Building Construction
Close
Close
Close
7 comments
Rate Comments: Nested
Anonymous Poster

MGM realityINC>

05/30/2007 7:52 PM

hello CR4 my new 3/4 HP submersible sump pump is going in my water well simply how do I remove the old one mgm

Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Popular Science - Biology - New Member Hobbies - Musician - New Member APIX Pilot Plant Design Project - Member - New Member Hobbies - CNC - New Member Fans of Old Computers - ZX-81 - New Member

Join Date: Jan 2007
Location: Centurion, South Africa
Posts: 3921
Good Answers: 97
#1

Re: MGM realityINC>

05/31/2007 3:21 AM

Simply by taking it out.

You have to give us more detail why it is difficult to get out.

If the weight is a problem (pipes will be full of water because of foot valve) you may have to rent or borrow a tripod and block and tackle (old technology).

__________________
Never do today what you can put of until tomorrow - Student motto
Reply
Power-User

Join Date: Mar 2007
Location: Northeast Pennsylvania, USA
Posts: 173
#2
In reply to #1

Re: MGM realityINC>

05/31/2007 11:13 PM

Boy I sure wouldn't want a SUMP PUMP in my drinking water well.....hehe... I think he meant submersible pump.

These well-pump guys have a special winch that yanks them out in a hurry. A 40 lb. submersible pump on the end of 300 ft. of 1-1/4" pipe filled with water is MIGHTY heavy!

__________________
Unless you're the lead dog on the sled, the view is always the same....
Reply
Guru

Join Date: Nov 2006
Location: OH USA
Posts: 549
Good Answers: 27
#6
In reply to #1

Re: MGM realityINC>

06/01/2007 9:47 PM

A submersible well pump is suspended on the end of a single discharge pipe so there is no foot valve; just the intake screen between the motor and impellers. Everyone is right, the pipe will normally be filled with water. There should also be a safety line attached to the upper end of the pump. The old pump is pulled with the combination of pipe and safety line (and sometimes the power cord). May fit pretty tight because there may also be one or more torque arresters clamped around the pipe above but near the pump. The arresters are expanded and clamped to closely fit the well wall and are intended to resist torsion on the pipe as the pump cycles.

If the pump is installed on steel pipe, it is probably in coupled 20 ft sections. Easiest to pull, cut into smaller sections and scrap. If its on plastic, just pull and layout. Either way, best to plan on installing the new pump on new pipe.

Reply
Guru

Join Date: Oct 2006
Location: Surrey BC Canada
Posts: 1571
Good Answers: 42
#3

Re: MGM realityINC>

06/01/2007 1:03 AM

We had a drill company drop our 5Hp 4" submersible pump 450ft down our well. Impact at the bottom broke about 100ft of pipe off the pump fitting, so we had 2 pieces, pump and pipe down the hole. They made up a special capture tool that looked like a cam. Slid that down the well and retrieved both pieces. $5000 later we had the pieces in hand. Steel 2" line and Pump requires about 2000 lbs hoist. But check you weights for your application.

Reply
Anonymous Poster
#4

Re: MGM realityINC>

06/01/2007 11:28 AM

Impact at the bottom? Did they drop the pump as they got to the bottom? Didn't they lower the pump and the pipe string with a boom truck. You should have the pump company remove the pump and repair their poor worksmanship (they should be liable for the installation). A pump should never be set at the bottom of a well, but at least a few feet above the bottom. Hope they didn't damage the well screen, if they dropped a pump with enough force to damage the pump.

Reply
Guru

Join Date: Oct 2006
Location: Surrey BC Canada
Posts: 1571
Good Answers: 42
#5
In reply to #4

Re: MGM realityINC>

06/01/2007 1:24 PM

We had the well drilling / pump supplier company servicing the pumps. There are two 4" pumps down an 8" casing. The pumps are set at about 200ft down the hole, the well is 450 ft deep. (Aquifer is almost artesian, bringing the water to 20 ft from surface with no pumping, draw down is 80 ft at 160 gal per minute, 24 x 7, 200 days per year).

One of the pumps had a shorted winding mandating the removal.

The pumps are held in a wedge type fitting with the water connection through the side of the casing. They failed to stabilize or properly secure the second pump as they removed the top pump. They managed to snag fittings and lift the second pump from its seat, and it fell the remaining 250ft to the bottom.

Reply
Power-User
Peru - Member - New Member Engineering Fields - Biomedical Engineering - New Member Popular Science - Genetics - New Member Fans of Old Computers - Commodore 64 - New Member

Join Date: Nov 2006
Location: Perú
Posts: 111
#7

Re: MGM realityINC>

06/01/2007 11:40 PM

GUIDES FOR THE CONSTRUCTION OF PUMPING STATIONS OF POTABLE WATER

The instructions are in Spanish, are the precise instructions (OMS) to which these soliciing, you can use google translator so that you have an idea.

__________________
We must understand the things like are and not to try that they are as we want.
Reply
Reply to Forum Thread 7 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); Bluestone (1); Grage Tesla (1); GW (2); Hendrik (1); Sniccus (1)

Previous in Forum: CFM measurements   Next in Forum: Additional Building Construction
You might be interested in: Sump Pumps, Submersible Pumps, Submersible Mixers

Advertisement