Bradshaws Polyfibrelay And Standard Pond Underlay
Pond Underlay For Use With Garden Pond Liner
The choice of pond types available to the pond keeper are the traditional pond made from concrete, preformed ponds, of which there are a myriad of different types, sizes, shapes and colours and the pond constructed using a pond liner, whether that be a pond liner made from EPDM rubber (cheapest), butyl rubber or PVC. When choosing the latter option it is sensible and not only gives your new fish pond a professional finish but also provides a quality foundation for your pond. Pond liners are only guaranteed when under laid correctly. I recommend that you use a quality underlay or an aquatic brand name underlay.
What size liner do I need for my pond?
The calculation is as follows - Length of liner = (length + (2 x
depth))+10%
Width of liner = (width + (2 x depth))+10%
Plan your pool with one dimension equals a standard width of liner off the rolls. EPDM generally comes in multiples of 5 feet up to about 25 feet. PVC and butyl liners are normally supplied in 2 - 8 metre widths. If there are significant changes in shape then use an extra liner. Make sure that you measure along the contour of the pond excavation just to check before you try to install it. No matter what you have previously read don't stretch the liner into place - fold it into place, prior to cutting . Use underlay and sand especially in gravely and stony situations. The pressure of water magically causes stones to float up through the sand and press against the liner. You may have to double the underlay for projects where the liner is going to be totally obscured by stone work.
Bradshaws
Polyfibrelay - Quality Pond Underlay
Polyfibrelay is stronger than similar fabric underlay's due to the needle punch production method used in it's construction. Designed to last a lifetime. Moulds neatly to the contours of your pond. Resistant to root penetration. Polyfibrelay is sold in sizes which compliment the Polyex Liners. e.g. if you need a liner 6m x 5m, simply choose the same size for your underlay.
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Bradshaws
Standard Underlay - Polythene Pond Underlay
Extra thick heavy-duty polythene underlay provides a highly effective barrier for budget ponds. Puncture and tear resistant giving long lasting support for your liner. Flexible, to mould to the contours of your pond. Standard Underlay is sold in sizes which compliment the Polyex Liners. e.g. if you need a liner 6m x 5m, simply choose the same size for your underlay.
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