Hydro Grease Plate mk11 Waterco — a purpose-built hydrostatic relief plate engineered to outlast typical pool components and protect your investment from water-induced damage.
When rainwater and groundwater accumulate beneath a pool, the resulting hydrostatic pressure can push against the shell. If not relieved, that pressure risks lifting the pool, misaligning fittings, and potentially cracking the structure. The Hydro Grease Plate mk11 Waterco is designed to address this at the deepest end of the pool, rising just enough to create a controlled entry path for pressurized water. This targeted relief prevents dangerous pressure buildup before it ever reaches critical levels.
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Automatic relief at the deepest end: The plate responds to hydrostatic pressure without electricity or manual intervention, offering proactive protection during heavy rainfall or wet seasons.
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Longevity-forward design: Building on the proven mk2 concept, the mk11 Waterco delivers enhanced durability and reliable performance over years of hydrostatic cycling.
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Grease-sealed edge and stable lid: The outside edge of the lid is smeared with grease to maintain a tight seal, while the lid is filled with concrete or Pebble Crete for stable, load-bearing support.
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Seamless integration: Specifically designed for installation under the pool at the deepest point, compatible with standard shell and deck configurations.
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Low-maintenance by design: A passive, no-moving-parts solution that minimizes ongoing care beyond routine inspection of the lid and seal.
Who needs it: This solution is ideal for pool owners in areas with heavy rainfall or fluctuating groundwater, builders working on new installations, and retrofits where hydrostatic pressure threatens pool integrity. It’s particularly beneficial for pools with a pronounced deep end or decks that limit traditional drainage options.
Why this matters: Unlike passive drains that address water after it accumulates, the Hydro Grease Plate mk11 Waterco actively relieves pressure at the source, reducing the risk of pool uplift, structural damage, and costly repairs. It helps preserve plaster finishes, seams, and overall pool alignment over time.
For best results, have a qualified professional position the plate at the deepest point during shell construction or retrofit. Proper sizing and placement ensure the relief action activates before pressure reaches damaging levels. Perfect Pools makes Perfect Sense.
