(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 11 of 11

Thread: 11 yr old drop pipe and wire reusable on 220ft pump swap......?

  1. #1
    P.E. (Professional Engineer) xlr8tion's Avatar
    Join Date
    Oct 2011
    Location
    SC
    Posts
    58

    Default 11 yr old drop pipe and wire reusable on 220ft pump swap......?

    My 11 yr old Grundfos 16S15-14 (2 wire 16 gpm 1.5hp) pump bought it and I have Silverline SCH 80 PVC drop pipe (220ft) and I think 14/2 non braided cable.

    The drop pipe is 1.35/foot (300 w/fittings) and the cable I cant find a quote on)not sure if it is 14 or 12 gauge)....


    The guy I am using claims he can reuse the drop pipe, fittings, and wire?

    I got a great deal on the pump (630 bucks) so I can afford to replace the pipe and wire so I am wondering what you guys think it is necessary or a waste o cash. What are the odds of the pipe going bad after 11 yrs if it is Silverline SCH 80?


    Thanks!!!!!!!!!!!!

    BTW...I ordered a new Simmons 4"x1.25" split well seal and 40/60 Pumptrol. The well seal was corroded as hades!!!!!!!!!!

  2. #2
    In the Trades Texas Wellman's Avatar
    Join Date
    Feb 2010
    Location
    SE Texas-Coastal
    Posts
    487

    Default

    I re-use wire and pipe all the time.

    Just have him check the wire real good as you're going back in the hole for "bruises". Nicks, cuts, kinks, etc.

    Porky suggests turning the wire around so the old bottom goes to the top and vice versa.

    14-ga wire sounds too small....Might double check to see that it's 12ga. I never use 14 ga even if it's in spec....always go with 12.

  3. #3
    P.E. (Professional Engineer) xlr8tion's Avatar
    Join Date
    Oct 2011
    Location
    SC
    Posts
    58

    Default

    Thanks TW.....

    Your sound advice and expertise is certainly appreciated. Will check the wire gauge and reverse the wire as you suggested!


    Have a fantastic day!


    Peace!

  4. #4
    P.E. (Professional Engineer) xlr8tion's Avatar
    Join Date
    Oct 2011
    Location
    SC
    Posts
    58

    Default Brass 1-1/4" couplers on drop pipe......

    I've read that PVC SCH 80/120 couplers are not to be reused as thy may have cracked during the initial install.

    Do you guys recommend using Brass couplers....?

    I have also read alot of pros and cons on torque arrestors and cable guards. Will either if these help keep the pump off the casing if casing is not perpindiclar? With a 3.9" pump in a 4" casing I want the pump to have THE WHOLE 1.25mm(LOL) concentric space. In SC all casings are canted!

    I greatly respect valveman's wish to keep it simple w/no arrestor but the inside casing can be lubed with a pressure washer with surfactant and the arrestor will not pose a problem-IMHO

    Thanks.......

  5. #5
    DIYer, not in the trades LLigetfa's Avatar
    Join Date
    Feb 2011
    Location
    NW Ontario, Canada
    Posts
    3,685

    Default

    Quote Originally Posted by xlr8tion View Post
    Will either if these help keep the pump off the casing if casing is not perpindiclar? With a 3.9" pump in a 4" casing I want the pump to have THE WHOLE 1.25mm(LOL) concentric space. In SC all casings are canted!
    I have pulled up my pump and found that the torque arrestor had disintegrated. In my case, I have a 6" casing so not to worry. In a 4" casing a stray piece of rubber could get in the way of the pump coming up.

    As for keeping it perfectly centred, that's not going to happen when there is less than 1/8" to spare. Torque arrestors are just not that precise.

    I would never trust PVC couplers. The couplers are under tension, not compression like their mate (the pipe). Brass if you are not in California or not concerned about lead, otherwise SS.

  6. #6
    P.E. (Professional Engineer) xlr8tion's Avatar
    Join Date
    Oct 2011
    Location
    SC
    Posts
    58

    Default

    Thanks LL......

    Brass it is and forget the torque arrestor.......! I found out my well driller used galvanized couplings....

    BTW....I have read alot of your posts...enjoy reading your theoretical and practical perspectives.....whats your background?

    All this "well drama" is based on the "superunknown" of the well driller not remembering how he did my job 11 yrs ago.

    First he quoted me 300 to swap the pump (200ft); when he found out I ordered it myself(he wanted 2x as much) he said the job was going to be 200 more.

    I'll build a tripod and pull it myself...my Neighbor has a Kwik Klamp pipe holder.

    Oh.....I am going to mount a 1.25" nipple into the top of the pump so I don't accidentally cut new threads(if I use the pvc drop pipe direct into the pump) and push the check valve flat washer down far enough to prevent it from opening.

    Always something to obsess about w/these projects.

    Anwho..thanks a million...now I am off to find the Brass couplers
    Last edited by xlr8tion; 04-11-2012 at 01:53 PM. Reason: typo.....

  7. #7
    In the Trades Texas Wellman's Avatar
    Join Date
    Feb 2010
    Location
    SE Texas-Coastal
    Posts
    487

    Default

    Nothing wrong with using galv. couplings if the water allows it. It all depends on the chemistry of the water. Take a good look at them when you get them out, if they are in good shape you can re-use them.

  8. #8
    General Engineering Contractor ballvalve's Avatar
    Join Date
    Dec 2009
    Location
    northfork, california
    Posts
    3,261

    Default

    Brass couplings are a crapshoot for quality because of the typical asian source. Try and find some ductile iron [Think fire sprinkler companies] US couplers or SS

  9. #9
    P.E. (Professional Engineer) xlr8tion's Avatar
    Join Date
    Oct 2011
    Location
    SC
    Posts
    58

    Default The SS couplings look like this.....

    Amazon sells them cheaply...They are cast and I think make in china/taiwan.

    http://www.amazon.com/Stainless-Stee...265276&sr=1-10

    Last night they had a couple hundred 1-1/4"...now they are near out...

    Here's an example of a 304 fitting for 6.39 delivered-the galvanized cost me 2.58 each.

    These SS are not Chamfered and I worry about the casting quality of slave laborers.....

    I ordered the 316L ones for 7 a piece and got a Class 1000 coupling that will attach to my 1-1/4 x4" nipple that will be inserted into the pump head.

    Again I am overthinking this and I can imagine one of these fittings stress fracturing (only a 300PSI W.O.G nominal) and my new pump fall to the the bottom of the aquifer.


    What do you guys think of these fittings?


    I know-go w/galvanized.

    Regards......Greg

  10. #10
    Moderator valveman's Avatar
    Join Date
    Mar 2006
    Location
    Lubbock, Texas
    Posts
    4,156

    Default

    Go for it! Looks like a sch 40 coupling to me. Just hope it really looks like the picture.

  11. #11
    General Engineering Contractor ballvalve's Avatar
    Join Date
    Dec 2009
    Location
    northfork, california
    Posts
    3,261

    Default

    If you scroll over a few lines they have a forged monster for 12 bucks.

Similar Threads

  1. Leaking drop pipe
    By shawnb in forum Pumps and Tanks Well Forum & Blog
    Replies: 5
    Last Post: 05-29-2011, 10:35 AM
  2. how to drain the drop pipe
    By rick.a in forum Pumps and Tanks Well Forum & Blog
    Replies: 3
    Last Post: 05-23-2008, 07:31 AM
  3. Information on a reusable whole house water filter:
    By Mikebarone in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 2
    Last Post: 05-12-2008, 08:21 PM
  4. motor swap on jet pump
    By Wet_Boots in forum Pumps and Tanks Well Forum & Blog
    Replies: 23
    Last Post: 11-23-2007, 06:06 AM
  5. Swap Sears shallow well pump for new one, questions
    By educateme in forum Pumps and Tanks Well Forum & Blog
    Replies: 17
    Last Post: 05-27-2006, 07:25 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •