Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 8 of 8

Thread: Plumbing

  1. Back To Top    #1

    Join Date
    Jan 2016
    Location
    San Antonio
    Posts
    7

    Plumbing

    After research and calculations the plumbing upgrade begins. Currently the pool has 1.5 inch pipe and appears to have had multiple repairs. The pool currently has 3 returns 2 in deep end and the other appears as an old suction line that was converted to a return line. The pool has 1 skimmer and the main drain has been concreted over. A second skimmer will be added and would like to add 2 more return lines in the shallow end of pool. The plumbing will be replaced with 2 inch and run parallel. Valves will be added at the pool pad to separate the skimmers and return lines. A vs pump (not sure which pentair) and cartridge filter will be used.


    Questions:

    Is a reducer used for the 2 to 1.5 existing return lines? Will this have significant pressure problems?

    How are return lines added in a gunite pool? How large should the hole be? How to reseal the hole?

    Anything I am missing?

    Thank you for the help
    1968 pool 8.5 feet deep I have been told 38000 gallons old single speed pool pump undersized filter 1.5 plumping (has been improperly replaced once in the pools life) a skimmer that was replaced but needs replacement. Has a leak and multiple cracks that have been repaired. My money pit

  2. Back To Top    #2

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,083

    Re: Plumbing

    I like the idea of a second skimmer. Have you evaluated the need for the additional returns? They will be pretty pricey
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Jan 2016
    Location
    San Antonio
    Posts
    7

    Re: Plumbing

    Yes did evaluate the need it appears 2 more returns would be sufficient. Just need to figure out how to punch a couple of holes in the side of the pool and seal them
    1968 pool 8.5 feet deep I have been told 38000 gallons old single speed pool pump undersized filter 1.5 plumping (has been improperly replaced once in the pools life) a skimmer that was replaced but needs replacement. Has a leak and multiple cracks that have been repaired. My money pit

  4. Back To Top    #4

    In the Industry

    Join Date
    Jan 2015
    Location
    las vegas
    Posts
    82

    Re: Plumbing

    A rotor hammer with a 2 bit will punch the holes needed fairly quick. Be careful when using, if you hit rebar bit stops spinning and you can get a strong kick from the hammer. Hydraulic cement is what most people seal around pipe with. Pour small amount of concrete in back of gunite to secure pipe in place, and then hydraulic cement on the interior side. Plaster patch next if pool is not being replastered.


  5. Back To Top    #5


    TFP Guide

    bmoreswim's Avatar
    Join Date
    Jul 2012
    Location
    Central MD
    Posts
    3,292

    Re: Plumbing

    And if they hit rebar, they should retreat, try again and patch correct? Just clarifying.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

  6. Back To Top    #6

    Join Date
    Jan 2014
    Location
    Southern California
    Posts
    53

    Re: Plumbing

    Oh gosh! I did some core drilling today and went straight through the rebar, now I'm worried....

  7. Back To Top    #7


    TFP Guide

    bmoreswim's Avatar
    Join Date
    Jul 2012
    Location
    Central MD
    Posts
    3,292

    Re: Plumbing

    I was coming at that question from the "difficulty of drilling through it" aspect. I personally wouldn't be concerned at all about the repercussions of going through a piece of rebar.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

  8. Back To Top    #8

    Join Date
    Jan 2016
    Location
    San Antonio
    Posts
    7

    Re: Plumbing

    Thank you will get a core bit and add them does not sound so bad. LOL Is it best to replace the existing lines or just use a reducer?
    1968 pool 8.5 feet deep I have been told 38000 gallons old single speed pool pump undersized filter 1.5 plumping (has been improperly replaced once in the pools life) a skimmer that was replaced but needs replacement. Has a leak and multiple cracks that have been repaired. My money pit

Posting Permissions

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