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Accumulator Vessels - Composite

GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action diaphragm designs of GWS Challenger™ tanks. What sets the C2Lite CAD™ apart from other composite tanks, is that it doesn’t hide tired old bag technology in a plastic shell; the patented CAD2 diaphragm design is considerably stronger and will not crease or deteriorate.  The C2Lite CAD™ features a chlorine resistant 100% butyl diaphragm with precision molded copolymer polypropylene liner for superior air and water separation.  The patented design allows each size tank to offer a properly sized water chamber matched to the drawdown performance of the tank. Easy to install, weather resistant and engineered to withstand extreme environmental conditions, the C2Lite CAD™ design cannot be beaten when it comes to performance and durability and are the best quality composite vessels available today. As with all GWS products C2Lite CAD™ tanks are quality tested throughout the production process to ensure their structural integrity.
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    Accumulator Vessels – Composite
    GWS 60 litre Composite Accumulator C2B-60LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 80 litre Composite Accumulator C2B-80LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 100 litre Composite Accumulator C2B-100LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 130 litre Composite Accumulator C2B-130LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 200 litre Composite Accumulator C2B-200LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 250 litre Composite Accumulator C2B-250LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 300 litre Composite Accumulator C2B-300LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 350 litre Composite Accumulator C2B-350LV

    GWS C2Lite CAD™ Composite Vessels Offering a lightweight composite solution with proven performance, the C2Lite CAD™ series has been designed with the patented controlled action…

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    c2b-60lv
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    Accumulator Vessels – Composite
    GWS 450 litre Composite Accumulator C2B-450LV

    GWS C2Lite CAD™ Composite Vessels The C2Lite CAD™ series offers a lightweight composite solution with proven performance. Designed with GWS Challenger™ tanks’ patented controlled action…

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Frequently Asked Questions

Quick answers to common questions about the Accumulator Vessels – Composite. For technical specifications, see the product details above; for sizing or installation advice, contact our team. If you have any other questions, we're happy to help.

What is an accumulator tank?

An accumulator tank is a pressurised vessel that connects directly to the mains supply and stores water under pressure. When a tap or shower opens, water discharges immediately from the vessel at full mains pressure rather than drawing only from the street main. This delivers stronger, more consistent flow at peak times. Accumulators have no pump and no moving parts so they are maintenance free and silent.

When should I use an accumulator instead of a pump?

An accumulator is the right solution when static mains pressure is adequate – above 2 bar – but flow is poor or drops during peak demand. It boosts available flow without adding a pump, energy use or noise. If static pressure is below 2 bar, a booster pump is needed instead, or an accumulator combined with a charge pump such as the WaterBoost ACF1.

What size accumulator do I need?

Accumulators are typically sized on a 60 per cent usable rule – a 300 litre vessel delivers around 180 litres of boosted water per cycle. As a guide, a 2 to 3 bedroom home suits a 300 litre vessel such as the GWS GCB-300LV. Larger 4 to 5 bedroom homes or properties with multiple bathrooms typically need 450 to 600 litres. Vertical models save floor space, horizontal models suit lofts and roof spaces.