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Cistern Liners

Water Storage Tank Liners

Cistern liners are a cost-effective way to update existing cistern tanks for safe water storage without having to replace the tank itself. Cistern liners are custom built to meet the dimensions and specifications of your cistern tank. We also carry Water Storage Tanks.

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Cistern Tank Liner Features

  • Polyethylene, Polypropylene, Elvaloy, PVC. Fabrics
  • FDA compliant fabrics available for potable water
  • Gray and Waste Water Storage options also.

Cistern Tank Liner Benefits

  • Significant savings instead of replacing the tank.
  • Protects cistern tanks and lengthens their lifeapan.
  • Simple to install.

Cistern Tank Liner Details

Use of cistern liners can help extend the lifespan of new tanks. They can also be used to renew existing cicstern takes, so that replacement of the tank isn't necessary. Cistern liners are made from a choice of drinking water compatible fabrics or non-potable fabrics, depending on the water storage requirements. Cistern liners are sized specifically to meet the size of your existing unit to provide you with the perfect fit. To determine the most suitable cistern liner for your cistern tank, we need the following information:

Dimensions Of Your Cistern Tank

The length by width by height (L x W x H) dimensions for rectangular or square cisterns and the height by diameter (H x dia.) for circular units.

Surface of Your Cistern Tank

The length by width by height (L x W x H) dimensions for rectangular or square cisterns and the height by diameter (H x dia.) for circular units.

Piping, Hardware, or Access Restrictions

The length by width by height (L x W x H) dimensions for rectangular or square cisterns and the height by diameter (H x dia.) for circular units.

Cistern Tank Liner General Specifications

Liner Materials NSF 61 and FDA Approved Additional materials available on request.
Sizing Built to fit your existing cisterns(L x W x H) or (H x diameter)
Cistern Shapes Built to fit round, rectangular, square or uniquely shaped cistern units.

Cistern Tank Liner Installation

Cistern tank liner installation can vary depending on your location and the type of cistern that you have. In general, liners are typically installed either through fittings located on the tank, outside bands placed around excess fabric on the cistern tank or inside installation through the top of the liner and the top of the tank.

This will include the use of a plastic or steel band that can be placed all the way around the interior of the cistern tank. The banding will use gaskets and hardware to attach your liner directly to the tank.

Depending on the fabric of your existing cistern, a geotextile may also be added between the cistern liner and the tank. This can help to provide extra protection for the liner and prevent water leaking.

Cistern Tank Liner Installation Step-By-Step

  • Measure 1" from each edge of the battening section and drill the bolt through the cistern wall, geotextile and the battening. Measure every 12" from those drill holes, and drill remaining holes. Remove the battening.

  • Roll out Cistern liner and place into the tank. Verify the liner is in the correct position and extends to the top of the tank. Smooth out bottom corners and weigh down with sandbag to keep in place.

  • While holding the battening against the liner and side of the tank, mark the drill holes on the liner for that section of battening. Remove and set aside the battening, drill through the liner and tank wall at each mark.

  • Fold back liner, and drive the wedge anchors partially into the drilled holes using a hammer, being sure to leave bolt threaded onto the anchor.

  • Stretch gasket material taut over the wedge anchors and hammer anchors through, securing the gasket to the side of the tank. Leave space for application of Sikaflex between the gasket and tank liner.

  • While wearing gloves, apply small beads of Sikaflex under the gasket, through and around the wedge anchors and around the entire perimeter of the tank.

  • Hammer the battening back over the liner and wedge anchors, applying pressure to secure the Sikaflex.

  • Use the nuts and washers provided to secure the battening into place.

Repeat these steps for each section of battening.

Visit our Containment Liners page for other tank and industrial liner options.

Cistern Liners FAQs

That depends. If your cistern tank is treated to protect the water quality already, then a cistern tank liner may not be necessary. If you are planning to use the cistern tank to store potable (drinking) water, it is highly recommended that your tank be treated to safely store drinking water. Even so, you may want to install a tank liner also. Cistern tank liners protect your tank from damage and extend the life of the tank. When the cistern tank liner eventually needs to replaced, you simply replace the liner instead of the whole tank.

We recommend selecting the type of fabric for your cistern tank liner to match the type of liquid stored in the tank and they type of tank used. This is particularly important when storing potable (drinking quality) water. You don't want chemicals or pollutants to leech into your fresh water supply, and the liner will need to be rated for potable water storage to ensure safety.

We do carry a full line of water storage tanks, including flexible tanks, fiberglass tanks, poly tanks, and steel tanks. Call us!

Get a Quote   or Call us! 863-261-8388