A guide to box welded pond liners

Nov 6

Written by:
Thursday, November 06, 2014  RssIcon

What are box welded pond liners?

A box welded liner is a prefabricated liner made to the exact specifications you provide to the supplier. You simply measure the dimensions of the hole you need to fill and the liner arrives, pre-made, ready to slot into the hole. Box welded liners tend to be made of either Butyl or EPDM rubber. All of the liner's seams will be fully welded for maximum strength, which means that there are no folds in the liner. Liners can be of any size and shape.

EPDM liners tend to be 1mm thick and Butyl liners are usually 0.75mm thick. Simple liners, such as squares and L-shapes, can be made by the manufacturer from just the required dimensions. More complex designs will require a drawing for them to work from. Very complicated pond liners can be created and installed on site.

What are the advantages of a box welded liner?

Box welded pond liners have several advantages over flat sheet liners. They fit perfectly into the hole you have prepared and eliminate the need for unsightly folds. They can be produced exactly to the dimensions you specify, and are easy and fast to install. EPDM or Butyl rubber liners have a life expectancy of around 40 years but can last much longer.

Box welded liners are also supplied with a lip all the way round the top, known as a flange. This holds the liner securely in place and also provides a nice neat finish to the pond or other water feature. Because, unlike with flat sheet liners, there are no folds in the liner, there is much less chance of bacterial build-up. Folds and ridges can trap debris which then encourages bacteria to grow, which can affect the water quality in the pond. Bacterial build up can be fatal to fish, such as koi carp, and can also make a water feature appear murky and dirty. Welded pond liners are so well sealed that they can even be used in drinking water applications.

Box welded liners are usually supplied with a 25 year warranty. This is usually on the condition that the liner is installed above a protective layer of underlay.

What shapes are best?

Standard shapes such as rectangles, squares, L-shapes and circles work best but any shape is possible. If you are thinking of installing a pond on two or more different levels, such designs are possible but you may wish to reconsider. Different levels within a pond will create a shelf and shelves are notorious for collecting debris which can affect the water quality. The effect of different layers on the water flow within the feature is also hard to predict and can lead to stagnant areas forming. A gradual slope is often better than a step.

If you are a landscape gardener or similar you may wish to order in some stock of ready-made liners in two or three different shapes. You can then offer your customers the choice of several affordable pond options.

For more information visits us at  or call +44 (0)870 770 2800.

There are no categories in this blog.
There are no recent comments on this blog.
Skip Navigation Links.
tank liners (26)
water storage tanks (17)
lake liners (16)
pond liner (10)
tank liner (8)
EPDM (7)
Butyl tank liner (5)
box-welded pond liners (4)
Butyl rubber liner (4)
lake liner (4)
pond liner installation (4)
pond liners (4)
waterproofing membranes (4)
box welded pond liner (3)
box-welded liners (3)
box-welded pond liner (3)
Butyl liners (3)
EPDM pond liner (3)
EPDM roofing membrane (3)
EPDM rubber liner (3)
EPDM tank liner (3)
fire protection systems (3)
reservoir liners (3)
roofing membrane (3)
tank refurbishment (3)
water storage tank liners (3)
water tank liners (3)
water tank refurbishment (3)
box-welded liner (2)
butyl rubber liners (2)
corrugated water storage tanks (2)
damp proof course (2)
Epalyn liners (2)
EPDM rubber liners (2)
EPDM rubber membranes (2)
EPDM waterproofing strips (2)
formal pond liners (2)
garden pond liners (2)
koi pond (2)
KOI pond liners (2)
lakes (2)
rainwater harvesting (2)
rain-water harvesting (2)
rubber pond liner (2)
rubber roofing membrane (2)
synthetic rubber liners (2)
tailored-to-fit pond liner (2)
TPO membrane (2)
water containment (2)
waterproofing strips (2)
bespoke pond liner (1)
bespoke pond liner projects (1)
box welded liners (1)
box-welded (1)
Butyl (1)
Butyl surge vessel bladder (1)
Butyl tank liners (1)
calculate pond liner size (1)
cold water storage tanks (1)
corrugated tanks (1)
corrugated water tanks (1)
customer review (1)
damp proof membrane (1)
damp proofing (1)
Epalyn (1)
EPDM damp proof course (1)
EPDM liners (1)
EPDM rubber (1)
EPDM rubber lake liners (1)
EPDM rubber roofing (1)
EPDM rubber roofing membrane (1)
EPDM tank liner membrane (1)
EPDM tank liner refurbishment (1)
EPDM tank liners (1)
EPDM water proofing strips (1)
external wall waterproofing membrane (1)
fire protection water storage tanks (1)
fish (1)
formal pond (1)
garden pond builds (1)
garden pond liner (1)
geotextile (1)
Geotextile membrane (1)
geotextile protective underlay (1)
golf course (1)
golf course lake liners (1)
golf course water storage systems (1)
golf courses (1)
ground water (1)
irrigation reservoirs (1)
KOI (1)
Koi ponds (1)
lake liners Butyl (1)
Legionella Bacterial (1)
liners (1)
pond (1)
pond liner measurements (1)
pond liners uk (1)
protective underlay (1)
rain water harvesting (1)
reclaimed water (1)
recycled water (1)
reservoirs (1)
roofing membranes (1)
rubber lake liners (1)
rubber lining membranes (1)
rubber roofing system (1)
rubber tank liner (1)
rubber tank liner membranes (1)
russetts (1)
Sealeco roofing system (1)
square pond (1)
storage tank refurbishment (1)
tailored to fit liners (1)
tailored-to-fit (1)
tailor-to-fit pond liners (1)
tank liner refurbishment (1)
tank liner reinstallation (1)
testimonial (1)
vertical pond design (1)
water containment liners (1)
water features (1)
water harvesting (1)
water management (1)
water storage (1)
water storage tank (1)
water storage tank liner (1)
water tank liner (1)
Water tank liner refurbishment (1)
water tank relining (1)
waterproofing (1)
waterproofing membrane (1)
window waterproofing membrane (1)