Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 6 of 6

Thread: Return Plumbing?

  1. Back To Top    #1

    Join Date
    Jul 2015
    Location
    Newton, NJ
    Posts
    89

    Return Plumbing?

    I've been interviewing PB's as my wife and I down-select. The PB we are 90% sure we are going with ties all of his return lines together. The pool we are choosing will most likely have 3 returns. I think I've read on this forum that the desired method is individual 2" lines to each? What are the advantages? I'm sure if I am adamant he will do whatever I'd like.

    The skimmer and main drains are 2" rigid separate all the way to the pump.

    ac

  2. Back To Top    #2
    jv92red's Avatar
    Join Date
    Mar 2013
    Location
    SoCal
    Posts
    116

    Re: Return Plumbing?

    Does your pool have an attached spa? Or any water features? How long are your pipe runs from pool to equipment pad?

    For equipment pad plumbing I have 2" on the output side (3 pool returns all tied together underground and reduced before the pool) and for skimmer and main drain my pool is 2.5" to my pump. This arrangement is duplicated for my spa and just insert a electronic actuated valve to switch in between the two on both before the pump and then after the SWG.

    In the pic below you'll see two pipes capped. The one on the left is the 2" dedicated vacuum port, the one on the right is one of three reduced return lines. You'll see this return line is reduced from 2" very close to the pool then tee'd and reduced to the return near the shallow end which is about another ~15 feet away.
    P1030092.jpg

    Here's a pic of my pad:
    P1030467.jpg
    Last edited by jv92red; 08-18-2015 at 01:18 AM. Reason: added pic
    15'x35' IG 16,500 gallons w/attached raised 18" spa continuous coping w/underneath spill and ledger stone wrapped, NPT mini pebble aqua blue w/2x pigment & abalone shell finish, 2"x24" travertine coping, 3x Jandy Color LED lights (2 in pool), Jandy Flo Pro 2HP VS pump, Jandy LXI (low NOx) 400K BTU heater, Jandy CL460 cartridge filter, Jandy AquaPure Ei SWG, Jandy Z4 automation with iAqualink and remote poolside PDA, 1,300 sqft Belgard Catalina paver deck with drainage, fire pit that matches the spa with travertine coping and wrapped in ledger stone, Elitewood insulated patio cover, Vinyl gates, back vinyl fence coming soon...
    TF-100

  3. Back To Top    #3

    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,077

    Re: Return Plumbing?

    I think I've read on this forum that the desired method is individual 2" lines to each?
    There is no need for that. Unless you are pumping 200-300 GPM, that is way overkill.

    In a large pool (with a large filter) 2" lines will come off the multiport and quickly drop to 1.5 " distribution to each return.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  4. Back To Top    #4
    Divin Dave's Avatar
    Join Date
    Oct 2013
    Location
    Longview, Texas
    Posts
    4,926

    Re: Return Plumbing?

    2 Inch on the suction side and 1.5 on the return side is more than enough.

    I like the idea of each pipe individually plumbed all the way to the pad with a valve on for a few reasons.

    1. It lets you balance your return flow better. WIth a 'Loop' return system such as your PB is proposing, each return after the 1st one will have a little less flow than the one before it. If you needed to change the flow to improve circulation by adjusting flow on the return furthest from the pump, you would have no way to do it except by re-sizing the eyeball, which really isnt very efficient and many times, ineffective.

    2. If you ever sprung a leak undergroud, you can put a plug in the return fitting in the pool and close the valve on the leaky pipe, and the leak would be stopped. With a Loop return, you cannot do that. The water would drain down to the level of the leak and stay there until you can dig up and fix it.
    Divin Dave,
    IG Vinyl, 15' x 30', 3 1/2' - 6' deep, Oval, ~15K gal, Intelliclor IC40, Intelliflo VS pump, Clean and Clear 420 Filter, auto-fill-disabled, Retrofit LED Color Light, Dolphin Nautilus Robot, TF100 Test Kit, Taylor K1766 Salt Test Kit, Tftestkit Pressure Gauge.
    www.tftestkits.net Experience- it's what's learned just after you needed it most !!

  5. Back To Top    #5

    Join Date
    Jul 2015
    Location
    Newton, NJ
    Posts
    89

    Re: Return Plumbing?

    Quote Originally Posted by jv92red View Post
    Does your pool have an attached spa? Or any water features? How long are your pipe runs from pool to equipment pad?

    For equipment pad plumbing I have 2" on the output side (3 pool returns all tied together underground and reduced before the pool) and for skimmer and main drain my pool is 2.5" to my pump. This arrangement is duplicated for my spa and just insert a electronic actuated valve to switch in between the two on both before the pump and then after the SWG.

    In the pic below you'll see two pipes capped. The one on the left is the 2" dedicated vacuum port, the one on the right is one of three reduced return lines. You'll see this return line is reduced from 2" very close to the pool then tee'd and reduced to the return near the shallow end which is about another ~15 feet away.

    No spa or fancy water features. In NJ if we wanted a spa it would make more sense to go standalone so we could use it in the fall/winter/spring.

    We dont' know how long the runs are, as we are still working out the layout. They will either be quite short (equipment located near pool) or quite long (50' if equipment is located by house).

    ac

    - - - Updated - - -

    Quote Originally Posted by Divin Dave View Post
    2 Inch on the suction side and 1.5 on the return side is more than enough.

    I like the idea of each pipe individually plumbed all the way to the pad with a valve on for a few reasons.

    1. It lets you balance your return flow better. WIth a 'Loop' return system such as your PB is proposing, each return after the 1st one will have a little less flow than the one before it. If you needed to change the flow to improve circulation by adjusting flow on the return furthest from the pump, you would have no way to do it except by re-sizing the eyeball, which really isnt very efficient and many times, ineffective.

    2. If you ever sprung a leak undergroud, you can put a plug in the return fitting in the pool and close the valve on the leaky pipe, and the leak would be stopped. With a Loop return, you cannot do that. The water would drain down to the level of the leak and stay there until you can dig up and fix it.
    That was kinda my thought as well. I'll broach the subject if/when we go with him and get to the real negotiations.

    ac

  6. Back To Top    #6


    TFP Guide

    bmoreswim's Avatar
    Join Date
    Jul 2012
    Location
    Central MD
    Posts
    3,282

    Re: Return Plumbing?

    Our 3 returns are plumbed on one line. Simple pool, no spa, etc. they bring the line size down very similarly to what you describe. They all put out a very similar volume of water.

    There are benefits the other way as mentioned above, but I have no problem with mine at all the way they are.

    Ours are buried in the pool walls. Hope they never leak! I lose no sleep over this.
    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!

Posting Permissions

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