Open-top flexible water tanks
Inflatable or foam rim • capacities from 1,000 to 25,000 litres
Collapsible open-top water tanks with an inflatable or foam rim. Choose capacity, STORZ connections, valves, colour and accessories for your site. Current construction and equipment are confirmed in an individual quotation.
Choose your tank
Configure an open-top water tank
Choose capacity and equipment. We will confirm specifications and price in your quotation.
Your configuration
Choose construction and capacity to prepare an enquiry.
Your selection is copied to the form. Complete your details and contact consent to send the enquiry.Open-top collapsible water tanks
For temporary water storage and organising a water reserve on site. Once emptied, the flexible tank folds for transport and storage. Construction is selected for the type of water, ground conditions and handling requirements.
Inflatable rim or foam rim
An inflatable upper ring requires a suitable air pump. A foam-filled rim does not need inflation. Not every capacity is available in both constructions. The configurator includes only the construction and capacity combinations listed in our source records; some foam-rim specifications require confirmation before quotation.
Connections and equipment
STORZ 52, 75 or 110 couplings with caps can be specified according to the model. The number of connection points and mounting on the wall or drain sleeve depend on construction. The STORZ coupling and valve are separate items. Ball valves, hydrant globe valves and PVC-U connections in 2″, 2½″ or 3″ are selected individually.

Accessories and colours
Options include PE protective groundsheets of 200 g/m² or PVC groundsheets of 650/670 g/m², transport bags, repair kits and foot or electric air pumps for inflatable rims. Documented colours include red, orange and khaki; current fabric availability is confirmed in the quotation. Pumps for the rim inflate with air, not water.
Example: a 2,000-litre tank
The documented example has an inflatable rim, two opposite STORZ 52 connections with caps near the base and handles for laying out the empty tank. A pump and protective groundsheet are selected as part of the equipment. This example does not define the standard equipment of the whole range.

Positioning and handling
Place the tank on level, prepared ground without sharp objects and follow the instructions for the specific model. Handles are for positioning an empty tank and must not be used to lift it when filled. Drinking-water use requires separate confirmation of documentation.
Prepare your enquiry
Specify capacity, rim type, connection type, number and positions, colour and accessories. Dimensions, weight, construction, equipment and price are confirmed in the quotation. The gallery contains actual photographs of the 2,000-litre example and identified earlier AI illustrations from the instructions. AI illustrations do not document a manufactured unit or technical specifications.

Frequently asked questions
What is the difference between open-top and closed tanks?
An open-top tank has an inflatable or foam rim. A closed tank is filled through connections. Construction is selected for the application and handling requirements.
Can the tank store drinking water?
Drinking-water use requires confirmation of current documentation for the material and finished tank. Selecting E1100F is an enquiry about that use, not confirmation of certification.
Can a filled tank be lifted?
Do not infer this from a photograph, handles or straps alone. Handles are for empty tanks. Lifting permission must follow the documentation for the specific construction; flat E1100F tanks of 10–20 m³ must not be lifted when filled.
How do I obtain a price and equipment confirmation?
Select construction, capacity and equipment, then continue to the form. Describe the water type, site and transport requirements. WATS confirms specifications, availability, documentation and price in an individual quotation.
Tell us about your project
Ask about Open-top flexible water tanks
- Help choosing a product for your application
- Own production — dimensions and materials can be changed
- Details and terms confirmed in your quote
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