The flexible PVC water tank is an excellent solution for storing drinking or grey water in tight spaces. It’s made of high-quality thermoplastic PVC specifically treated for potable water, ensuring the stored water retains its taste and clarity – no plastic odor or flavor. Its soft, bladder-like design means it can be installed in irregular spaces (under berths, in a boat’s bilge, in an RV storage compartment, etc.), expanding and conforming to the shape of the compartment. Virtually maintenance-free, the material resists mold and microbial growth, keeping your water safe over time.
- Strong and Reliable: The PVC fabric is reinforced and durable, resistant to abrasion and pressure. Even when the tank is filled to capacity and heavy, it maintains integrity. All seams are heat-welded at the factory for maximum strength, preventing leaks under normal use.
- Easy Installation & Use: Each flexible tank comes equipped with a wide fill opening on top for easy water filling and cleaning access. They also include outlet valve fittings that can be connected to a hose or pump, allowing you to integrate the tank with your fresh water system (to supply a faucet, shower, etc.). There is no complicated mounting required – simply place the tank on a flat supportive surface in your vessel or vehicle, and it will settle into place as you fill it.
- Sizes and Variants for Every Need:
- 55 L Rectangular (approx. 64 x 75 cm): A compact model suitable for small boats (around 3–5 m length) or camper vans where space is limited. Great for weekend trips or as a secondary water reserve.
- 100 L Rectangular (approx. 64 x 102 cm): A mid-size tank for general use – ideal for medium boats (5–7 m) or RVs, providing enough water for a sink and quick showers over a longer trip.
- 150 L Rectangular (approx. 64 x 135 cm): A large capacity tank recommended for bigger yachts and motorhomes where higher water volume is needed (e.g., to support multiple people over several days).
- 210 L Rectangular (approx. 64 x 180 cm): The maximum volume option – used on large boats (8+ m) or expedition trucks requiring significant water storage for extended voyages or off-grid stays.
- 55 L Triangular (approx. 80 x 88 cm, triangular shape): Specially shaped to fit the bow area or corner spaces. Ideal for small sailboats where the V-berth or bow compartment can accommodate a triangular tank, making use of space that would fit a rigid tank poorly.
- 100 L Triangular (approx. 120 x 110 cm, triangular shape): A larger triangular tank for the bow of medium sailboats or larger yachts. It allows one to utilize the forepeak space to store a substantial amount of fresh water.
- Practical Benefits: When not in use, the soft tank can be emptied, folded, and stowed away – extremely convenient for seasonal storage or transport. Unlike hard plastic tanks, a flexible tank won’t crack from freezing (as long as it’s drained) or from water expansion; under extreme conditions it can slightly change shape rather than burst. Additionally, the lack of rigid walls means less sloshing noise and movement of water when your boat or vehicle is in motion, contributing to a quieter and more stable experience.


