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    Plastic Hydrostatic Relief Valve 3.8cm / 1½"

    A hydrostatic relief valve helps to avoid possible damage to a swimming pool if the water table rises above the level of the pool floor.

    It allows the ground water to enter the pool via the main drain to help to prevent possible structural damage to the pool shell.
    Availability: In stock

    £13.50

    Free UK Delivery Over £60*
    UK Mainland Only (Excludes Highlands)
    Excludes Hot Tubs & Swimspas

    All Prices include VAT
    *Some product exclusions apply; see individual products for any applicable surcharges

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    90° Elbow

    90° Elbow

    1.5" 90 degree elbow fitting for swimming pools. If you are unsure of any element of plumbing in your plant room or swimming pool, please do not hesitate to contact us on either 029 20705059 or email sales@allswimltd.com.

    for further advice and guidance.
    £2.50
    90° Elbow - View Options
    Class C ABS Pipe

    Class C ABS Pipe

    Class C Pipe per metre 1½" or 2"
    Imperial White ABS (Acrylonitrile-butadiene-styrene) Class C (9 bar) Swimming Pool Pipe.

    If you are unsure of any element of plumbing in your plant room or swimming pool, please do not hesitate to contact us on either 029 20705059 or alternatively email     sales@allswimltd.com.

    for further advice and guidance.

    Please note when ordering please check pipe size required as 1½" Pipework has a 2" external diameter and 2" pipework has a 2½" external diameter.
    £7.75
    Class C ABS Pipe - View Options
    Socket Connector P/P

    Socket Connector P/P

    ABS Socket Connector P/P (pipe to pipe). Please note the internal diameter measures 1.5" with an external diameter of 2".

    If you are unsure of any element of plumbing in your plant room or swimming pool, please do not hesitate to contact us on either 029 20705059 or email     sales@allswimltd.com.

    for further advice and guidance.
    £2.30
    Socket Connector P/P - View Options
    Related products
    3.8cm / 1½" ABS Collection Tube

    3.8cm / 1½" ABS Collection Tube

    The Certikin collection tube is designed for use with Certikin swimming pool main drains and hydrostatic relief valves. Installed beneath the pool floor, it helps collect groundwater from below the pool structure and directs it towards the hydrostatic relief valve, helping to protect the pool from damage caused by rising groundwater levels.
    £8.50
    3.8cm / 1½" ABS Collection Tube - Add To Cart
    Certikin ABS Main Drain Fitting 15.24cm / 6"

    Certikin ABS Main Drain Fitting 15.24cm / 6"

    Main Drain fittings have an anti-vortex design which provides up to 50% more free flow area than other models. It's protective film helps to prevent damage during installation.
    £38.50
    Certikin ABS Main Drain Fitting 15.24cm / 6" - View Options
    Certikin Main Drain Grilles

    Certikin Main Drain Grilles

    Available for Certikin main drains.
    £17.25
    Certikin Main Drain Grilles - View Options
    Certikin Main Drain Screws

    Certikin Main Drain Screws

    Main Drain Screws per pair for Certikin main drains.
    £2.50
    Certikin Main Drain Screws - View Options
    Pipe Cleaner

    Pipe Cleaner

    250ml Pipe and Fitting Cleaner for use with ABS and PVC Pipe and fittings.
    £13.95 £14.25
    Pipe Cleaner - Add To Cart
    2026 All Swim Catalogue

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    • Mon - Fri 9.00 am - 5.00 pm
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    • (Closed Good Friday)
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    • All Swim Showroom
    • Units 3-5 Link Trade Park
    • Penarth Road
    • Cardiff
    • CF11 8TQ


    • 029 2070 5059
    • sales@allswimltd.com
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    A.J & J.L Veysey | Company registration no: 1061642 | VAT no: GB133 4078 90
    All Swim Ltd, Units 3-5 Link Trade Park, Penarth Road, Cardiff CF11 8TQ
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