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Thread: Unions for Hayward System

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    Join Date
    Mar 2015
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    Mount Pleasant, TN
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    Unions for Hayward System

    I'm attempting to convert my above ground pool plumbing to hard PVC. I'm having trouble trying to find unions that fit the outer thread on the pump, sand filter, strainer and return. Does anyone have an idea what type of unions (bushings) I can use?

    Also, I've seen several folks use ball valves on the skimmer and return lines. Is there any benefit from these? When would you actually close them? Surely you wouldn't when you close the pool because you'd have water in the pipes.

    Thanks.
    Pool Stats: 24" Round Above Ground - Vinyl - 13,500 Gallons | Filter: Hayward Sand S180T | Pump: Hayward Power-Flo Matrix | Testing Kit: TF-100 | Mount Pleasant, Tennessee

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    cowboycasey's Avatar
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    Re: Unions for Hayward System

    Hey there, I think these are the unions you are looking for Amazon.com: 2 PACK -CMP Hi-Temp Union 2 Garden

    The 3 way jandy valves are used for flow between 2 suctions or 2 returns and also to close the pool for winter.. I closed 1 side, blew the water out using a shop vac, turned the valve, blew the other pipe out and closed the valve completely
    Amazon.com : Jandy 4717 3-Port 2 to 2-1/2-Inch Positive Seal NeverLube Valve : Swimming Pool Pump Parts : Patio, Lawn Garden.

    I hope this helps
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
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    duraleigh's Avatar
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    Re: Unions for Hayward System

    If you don't find what you need, I suggest you call INYO Pools. They are really parts specialists and may find exactly what you want.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Unions for Hayward System

    So doing some research on these unions, I've figured out that I'll need 4 of these Hayward Union Connectors (set Of 2) WG (SP1500UNPAK2) - INYOPools.com
    (2 - 2 packs) and 3 of Hayward 1 1/2spg) Union Wg (sp14953s) - INYOPools.com
    . Boy, just for the unions it will be very expensive.
    Pool Stats: 24" Round Above Ground - Vinyl - 13,500 Gallons | Filter: Hayward Sand S180T | Pump: Hayward Power-Flo Matrix | Testing Kit: TF-100 | Mount Pleasant, Tennessee

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    Aug 2014
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    Albany ny
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    Re: Unions for Hayward System

    Hey Eric ...while the first unions you posted have proprietary threads for Hayward pumps and heaters , the second ones I believe might be standard and available at lowes and the depot for around $8. I'm not positive , but check it out. Near the schedule 40 pressure fittings.
    Kris
    14x26 rectangle vinyl liner pool . 1.5 hp 2 speed tri star pump, 2 aqua genie skimmers , no main drain. 175 sq ft star clear cartridge filter. 200,000 btu hayward heater Tf-100

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    Re: Unions for Hayward System

    Hey Kmaz the unions at Lowes look much bigger and I didn't see any with male threading. Are they schedule 40 or just regular unions?

    Pool Stats: 24" Round Above Ground - Vinyl - 13,500 Gallons | Filter: Hayward Sand S180T | Pump: Hayward Power-Flo Matrix | Testing Kit: TF-100 | Mount Pleasant, Tennessee

  7. Back To Top    #7

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    Re: Unions for Hayward System

    I believe they are sched 40 and they come in all sizes up to 2" . they might not be threaded but if looking to save a few bucks, use the appropriate sched 40 threaded coupling that then converts to slip fit, then to unions. I used the ones that cowboycasey posted that come in a 2pack and they are nice and reasonably priced.
    14x26 rectangle vinyl liner pool . 1.5 hp 2 speed tri star pump, 2 aqua genie skimmers , no main drain. 175 sq ft star clear cartridge filter. 200,000 btu hayward heater Tf-100

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