Vacuum Release System

Vacuum Release System

14 products

  • -53% Off
    Adjustment Screw Security Cap, Vac Alert, VA-2000

    Adjustment Screw Security Cap, Vac Alert, VA-2000

    Adjustment Screw Security Cap, Vac Alert, VA-2000

    Vac-Alert of California

    VA-2900
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110800011329","mpn":"VA-2900","warehouselocations":"Tucson, AZ","warranty":"12 Months"}
    $10.60
    $22.60 $10.60
  • -52% Off
    Security Cap Key, Vac Alert, VA-2000

    Security Cap Key, Vac Alert, VA-2000

    Security Cap Key, Vac Alert, VA-2000

    Vac-Alert of California

    VA-2970
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110799978561","discontinued":false,"mpn":"VA-2970","saleprice":"0","warehouselocations":"Memphis, TN","warranty":"12 Months"}
    $10.30
    $21.50 $10.30
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  • -55% Off
    Elbow, Vacless Systems, Fit-10

    Elbow, Vacless Systems, Fit-10

    Elbow, Vacless Systems, Fit-10

    Vacless

    FIT-10
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110774747201","discontinued":false,"mpn":"FIT-10","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $20.40
    $46.00 $20.40
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  • -53% Off
    Vacless SVRS, Maintenance Kit

    Vacless SVRS, Maintenance Kit

    Vacless SVRS, Maintenance Kit

    Vacless

    VAC55
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110672052289","discontinued":false,"mpn":"VAC55","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $44.40
    $95.60 $44.40
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  • -52% Off
    Tailpiece, Vac Alert VA-2000, 1-1/2" Slip

    Tailpiece, Vac Alert VA-2000, 1-1/2" Slip

    Tailpiece, Vac Alert VA-2000, 1-1/2" Slip

    Vac-Alert of California

    VA-2314
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110765670465","mpn":"VA-2314","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $10.30
    $21.50 $10.30
  • -54% Off
    Union Nut, Vac Alert VA-2000

    Union Nut, Vac Alert VA-2000

    Union Nut, Vac Alert VA-2000

    Vac-Alert of California

    VA-2315
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110765637697","mpn":"VA-2315","saleprice":"0","warehouselocations":"Tucson, AZ","warranty":"12 Months"}
    $10.80
    $23.80 $10.80
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  • -35% Off
    Vacuum Release, Vacless SVRS, Adj, Auto-Reset, Ctr Thd

    Vacuum Release, Vacless SVRS, Adj, Auto-Reset, Ctr Thd

    Vacuum Release, Vacless SVRS, Adj, Auto-Reset, Ctr Thd

    Vacless

    SVRS10ADJ
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110653374529","discontinued":false,"mpn":"SVRS10ADJ","saleprice":"0","warehouselocations":"Bloomfield, CT","warranty":"12 Months"}
    $478.20
    $738.30 $478.20
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  • -35% Off
    Vacuum Release, Vac-Alert VA-2000

    Vacuum Release, Vac-Alert VA-2000

    Vacuum Release, Vac-Alert VA-2000

    Vac-Alert of California

    VA-2000L
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110651965505","discontinued":false,"mpn":"VA-2000L","saleprice":"0","warehouselocations":"Murray, UT","warranty":"12 Months"}
    $587.60
    $907.60 $587.60
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  • -46% Off
    Vent Screen, Vac Alert, VA-2000

    Vent Screen, Vac Alert, VA-2000

    Vent Screen, Vac Alert, VA-2000

    Vac-Alert of California

    VA-2850
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110333132865","discontinued":false,"mpn":"VA-2850","saleprice":"0","warehouselocations":"Memphis, TN | Tucson, AZ","warranty":"12 Months"}
    $9.90
    $18.60 $9.90
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  • -54% Off
    Vacuum Gauge, Vac Alert, VA-2000, 0-30inHg

    Vacuum Gauge, Vac Alert, VA-2000, 0-30inHg

    Sold out

    Vacuum Gauge, Vac Alert, VA-2000, 0-30inHg

    Vac-Alert of California

    VA-2860
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110333100097","discontinued":false,"mpn":"VA-2860","saleprice":"0","warranty":"12 Months"}
    $18.70
    $41.40 $18.70
    Sold out
  • -35% Off
    Circuit Board, Hayward Stratum Vacuum Release System, VR1000

    Circuit Board, Hayward Stratum Vacuum Release System, VR1000

    Sold out

    Circuit Board, Hayward Stratum Vacuum Release System, VR1000

    Hayward Pool Products

    VRXPCBA
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110661763137","mpn":"VRXPCBA","warehouselocations":"Memphis, TN","warranty":"12 Months"}
    $1,723.30
    $2,659.80 $1,723.30
    Sold out
  • -53% Off
    Spring, Vac Alert, VA-2000L, 3.5lb

    Spring, Vac Alert, VA-2000L, 3.5lb

    Sold out

    Spring, Vac Alert, VA-2000L, 3.5lb

    Vac-Alert of California

    VA-2320 3.5
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110353743937","mpn":"VA-2320 3.5","saleprice":"0","warehouselocations":"Memphis, TN","warranty":"12 Months"}
    $10.80
    $23.40 $10.80
    Sold out
  • -59% Off
    Half Union, Vac-Alert VA-2000, 1-1/2" Slip

    Half Union, Vac-Alert VA-2000, 1-1/2" Slip

    Sold out

    Half Union, Vac-Alert VA-2000, 1-1/2" Slip

    Vac-Alert of California

    89-412-1010
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110765703233","mpn":"89-412-1010","saleprice":"0","warehouselocations":"Tucson, AZ","warranty":"12 Months"}
    $13.60
    $33.60 $13.60
    Sold out
  • -35% Off
    Vacuum Release, Vacless SVRS, Non-Adj, Electric, Ctr Thd

    Vacuum Release, Vacless SVRS, Non-Adj, Electric, Ctr Thd

    Sold out

    Vacuum Release, Vacless SVRS, Non-Adj, Electric, Ctr Thd

    Vacless

    SVRS30
    Sale Price Value: 0 Sale Price Number: 0 Website Price Value: 0 Website Price Number: 0 All Metafields: {"bundle":"gid:\/\/shopify\/Metaobject\/110653407297","mpn":"SVRS30","warranty":"12 Months"}
    $893.00
    $1,378.50 $893.00
    Sold out

Underwater Magic

Seal pool fittings, skimmer gaskets, and plumbing joints without draining with Underwater Magic pool sealant — the professional underwater-cure adhesive designed specifically for swimming pool and spa repair. Available in white, black, gray, tan, and blue in 290ml/9.8oz tubes and 12-count cases — starting from $56.90 per tube.

Underwater Magic is a single-component, 100% silicone-free adhesive sealant that cures in contact with water — unlike standard silicone sealants that require a dry surface and air cure, Underwater Magic is specifically formulated to bond and seal underwater. This makes it uniquely suited for pool repairs that would otherwise require a complete drain: sealing skimmer gaskets at the waterline, sealing around fittings and returns below the waterline, bonding loose tile or coping at the pool edge, and sealing cracks in plaster or gunite that are accessible but below the water surface. Key properties: temperature range of -40°C to +90°C (with short-term tolerance to +200°C), gap-filling capacity up to 40mm for wide cracks and voids, odor-free formula with no oxime, acetic acid, isocyanate, or solvents — safe for pool water without requiring water change after application. Color-matched options (white, black, gray, tan, blue) allow repairs that blend with the existing pool surface rather than creating visible patches. Individual 290ml tubes serve single repairs or small projects; 12-count cases ($543.80–$553.80) provide the volume needed for pool service professionals or multi-repair projects. Important: Underwater Magic is not compatible with vinyl pool liners — it is designed for plaster, gunite, concrete, tile, fiberglass, and PVC fitting applications.

Application: clean the repair area of algae, scale, and debris; dispense Underwater Magic from the tube directly onto or into the repair area while submerged; press firmly for 60–90 seconds; full cure occurs within 24 hours underwater. For above-waterline repairs, the product also cures in air — providing the same adhesion for both wet and dry surfaces.

Shop Underwater Magic at PST Pool Supplies and make underwater pool repairs without the cost and inconvenience of draining.

Frequently Asked Questions

Can Underwater Magic really seal a pool fitting without draining the pool?
Yes — Underwater Magic is specifically formulated to cure and bond in direct contact with water, making it genuinely usable for below-waterline repairs without draining. The product is a moisture-cure adhesive: water triggers the curing reaction rather than inhibiting it (which is why standard silicone or epoxy fails underwater). Real-world underwater repair applications include: skimmer faceplate gaskets — the gasket between the skimmer body and the pool shell at the waterline is a common leak point; applying Underwater Magic to reseal the gasket perimeter can stop the leak without draining. Return fitting gaskets — the flat gasket behind a return fitting eyeball in the pool wall can be resealed if accessible. Hairline cracks in plaster — small cracks in gunite plaster that are accessible from inside the pool can be filled while the pool is at normal water level. Loose tiles at or below the waterline — Underwater Magic bonds tile to the substrate underwater. The key limitation: surface preparation still matters — clean the repair area free of algae, biofilm, and loose material for best adhesion. The sealant cannot bridge large structural cracks or replace damaged fittings; it seals gaps and bonds surfaces but is not structural repair for significant damage.
Which Underwater Magic color should I use?
Select the color that most closely matches your pool surface at the repair location: White — for white plaster pools, white grout lines, white PVC fittings, and white fiberglass surfaces. The most commonly used color for most residential gunite and plaster pools. Gray — for gray plaster or quartz aggregate surfaces, gray grout, concrete pool decks, and gray-toned fiberglass. Tan/Beige — for tan-toned pebble finish plaster (Pebble Tec, Pebblebright), beige tile grout, and pools with warm-toned finishes. Black — for dark aggregate plaster surfaces, black grout, or when a dark-color pool finish is present. Also used for black PVC fittings and dark decorative tile. Blue — for blue tile, blue-tinted grout, or pool surfaces with a blue coloration. For fitting and plumbing repairs (PVC skimmer bodies, return fittings), the fitting color (typically white or gray) should guide selection — the sealant visible at the fitting/shell interface will be seen by swimmers. For below-waterline plaster repairs, the exact color match matters less once submerged — water depth and pool lighting change the visible color significantly regardless of which you choose.
How do I apply Underwater Magic for a skimmer gasket repair?
Skimmer faceplate gasket repair with Underwater Magic requires the pool to be at or near normal water level: (1) Identify the leak location — a failing skimmer faceplate gasket typically causes water loss that stops when the water level drops below the skimmer opening. Confirm by plugging the skimmer suction line and watching whether water loss stops. (2) Clean the repair area — use a stiff brush to remove algae, calcium scale, and biofilm from the skimmer faceplate perimeter and the pool shell surface around it while submerged. A clean surface is essential for adhesion. (3) Load the tube into a caulking gun — Underwater Magic 290ml tubes require a standard 290ml (European-format, 10oz-equivalent) caulking gun. Cut the tip to a bead size appropriate for the gap being filled. (4) Apply while submerged — insert the tip into the gap between the skimmer faceplate and the pool shell wall and apply a continuous bead around the perimeter. The water activates curing immediately. (5) Press and hold — use your fingers to press the bead firmly into the joint for 60–90 seconds to ensure contact adhesion. (6) Allow 24 hours before resuming normal pump operation. For above-waterline application (coping, tile repair above water), the application process is identical but the cure time may differ slightly with air exposure.
What pool repairs is Underwater Magic not suitable for?
Underwater Magic has specific limitations that make it inappropriate for certain repair applications: (1) Vinyl pool liners — explicitly not compatible. The adhesive chemistry does not bond to vinyl liner material. For vinyl liner repairs, use a vinyl repair kit (patch with vinyl-compatible adhesive) instead. (2) Large structural cracks — Underwater Magic can fill gaps up to 40mm, but it is not a structural repair material. A crack that is widening due to ongoing soil movement, hydrostatic pressure, or structural failure requires professional gunite patching or structural epoxy injection, not sealant. (3) Active water leaks with flow — if water is actively flowing through a crack or joint (flowing fast enough to be visible), Underwater Magic cannot cure in place; the water movement prevents the bead from setting. The flow must be stopped (hydraulic cement in the void, or drain the area) before applying sealant. (4) Pressure fittings with failed threads — Underwater Magic seals gaps around fittings but cannot replace the structural integrity of a fitting with stripped threads or a cracked body. Replace the fitting before sealing. (5) Surfaces with active efflorescence — concrete that is actively bleeding mineral deposits through hydrostatic pressure will reject the adhesive bond at the surface; the underlying cause must be addressed.