Vinyl Liners

The development of vinyl pool lining technology has transformed the modern swimming pool industry because the pool tank structure itself does not need to hold water. The details of this development are provided here.

We describe the pros and cons of installing tiling or using a vinyl liner in a new pool here.

I. Bag Liners

Bag liners are made in a factory from a single layer of 0.75mm thick vinyl and transported to site in a cardboard box that can be carried by two people. The maximum size is normally 12m x 6m with walls up to 1.5m high.


A liner lock is provided in 2/3 m lengths and is fixed down with mastic adhesive onto the top of the inner leaf of the polyblok wall. The liner is manufactured with a wedge shaped edge that is held in the liner lock by the weight of the water on the liner. The wedge shaped edge is inserted into the liner lock before the pool is filled with water. After the pool has been filled the liner lock is wedged in with beading as shown in the following images.

liner lock bead liner

The pool floor and walls need to be cleaned of all debris as any lumps will show through the liner. The underlay is then glued onto the pool walls and laid on the floor in strips that are taped together.

The liner is taken out of the box, is turned round so that the orientation is correct in an asymmmetric pool and the 4 corners are located accurately using the markings on the liner edges. The liner is then inserted in the liner lock around the pool perimeter.

The hose of an industrial vaccum cleaner is inserted, halfway along one long side of the pool, down to the pool floor. It is sealed in at the top with tape and is started. This will immediately suck the liner back onto the pool walls so that filling can commence.

As the pool fills the creases on the floor can be pushed into the sides releasing the air trapped beneath.

When the floor outlets have about 200 mm of water over them they can be fitted with the clamp plates and the liner cut out. The same process is followed for the skimmers, lights and water inlets as the water depth increases.

This might seem very complicated but it can easily be carried out by any competent handyman.

Colour Options:

Please click here to see the available options in the catalogue.

The bag type liners are provided with a 5 year guarantee on the material and a 10 year guarantee on the joints.

II. On Site Lining

On site lining incorporates a 1.5mm thick (double layer of 0.75mm vinyl membrane reinforced with a core of polyester mesh) Alkorplan in-situ liners. It is installed on site by a professional team in about a week.

This is simply the best value liner system available and is now provided with a large variety of finishes and textures and is suitable for premium quality domestic pools as well as commercial installations

It provides:


Various pattern options are available include many different mosaic colours and patterns as well as marble


The 2.0mm thick Ceramics range provides indented relief along the grout lines that mimics real tiles.

Island Dreams

The Island Dreams range is 2.0mm thick and is inspired by the sand from beautiful beaches.


The Touch range is 2.0mm thick and has been designed to simulate a variety of natural stone effects in texture and appearance.


Please click here to see the available options.