Whether you plan a medium or large Koi pond installation for your precious specimens a fibreglass pond liner should be at the top of the list of budgeting priorities.
Rubber butyl liners are popular amongst Koi pond builders. However, flexible liners have their limitations.
Unlike fibreglass liners, butyl liners provide no flexural strength and rigidity to the ponds foundations. Remember that Koi ponds generally have upwards of 2500 gallon capacity that is roughly equivalent of holding upwards of ten tons of water. With such weights the additional strengthening properties that a fibreglass liner gives a koi pond is a real bonus.
Another advantage of fibreglass over butyl is that it will easily mould and incorporate complex pond designs or unusual ornamental layouts with tight corners.
Visit the Gee-Grp Fibreglassing website for more information on A Fibreglass Koi Pond