Koi Pond Liner Replacement Information

The dreaded question – is it time to replace the on my pond? 

We will be discussing the 5 top pond liners in this article. However, first we will talk a bit about pond liners, the various sizes, materials and types that are available, and which ones are best suited for different kinds of usage.

We are sure either way that after you read this article you will be confident in knowing which pond liner is best suited for your individual needs. Not sure where to start? Your best option is calling a professional koi pond construction company

So, let’s get started.

What exactly is a Pond Liner

They are impervious, water-tight geomembranes that are use to reserve and withhold water in a garden or public pond. They are used widely and put over an underlayment, to help prevent damage from occurring and to keep the geomembrane in prime condition.

Kinds of Pond Liners

Pond liners are available is several different kinds, with the most common ones including PVC, RPE, and EPDM liners. All of them have unique disadvantages and advantages, and your application usage determines the ideal type. So let’s discuss the flaws and benefits of each one:

Rubber Pond Liner

Rubber/EPDM Liner:


  • Very flexible, which makes versatile at 90-degree angles, and well-suited for very compact shaping.


  • A bit softer than RPE liners, and a pond underlayment is required to be installed before you place it. However, after pond underlayment has been installed, is highly compensates for the softer density of the material.

PVC Liner:


  • A bit stronger compared to EPDM, although this can vary from one brand to the next.


  • Compared to EPDM pond liners they are less flexible

RPE Liner:


  • Lightweight
  • A pond underlayment is not required
  • Disadvantages:
  • Not as commonly found or used
  • Not as flexible compared to EPDM

Exposed New Pond Liner During Construction


Sizes of Pond Liners

Pond Liners are comprised of a range of various sizes in order to accommodate for various requirements and tastes when it comes to creating garden ponds. Usually they start at about 5 x 5 feet, but there are ones the go up to 35 x 35 feet that are available.

We have links to all of the various pond liner sizes that are featured in this article, to make the process easy and fast for those who know what their liner dimension and size requirements are.

Pond Liner Installation

We will be discussion all the necessary steps that you need to take, in order to help ensure that your liner is installed successfully, so let’s get started!

Conduct some research (perhaps contact your local council about permission and whether or not there are any obstructions or pipes under your garden that will prevent a pond from being installed.

If everything is okay, the get the equipment that you need for the installation. That includes a horizontal measuring leveler, hose, shovel, and rope. Choose a level part of your garden for your pond location. Keep in mind that it is more ideal to have a partially shaded location, so that your fish stay cool and to help prevent algae from growing in the pond.

Make a detailed plan of your water garden design, including ideas on the depth, shape, and size. Original content source: koipros.com – The depth may be variable, with some parts being deeper compared to others, although you need to keep in mind that will dictate the size of liner that you need. Also, remember that a majority of plants have 9-12 inch plant shelves.

Tractor Excavating A Pond And Stream In Backyard


Start digging the pond

Usually the pond liners are made out of rubber and plastics, so that the main vulnerability of the liners is abrasion, which is caused by stones, jagged-edged rocks and other sharp objects. That is why it is important to ensure that the area directly under where the liner is going to be place is free of any potential piercing objects and is smooth.

Place a 2-3 inch layer of sand over the ground to ensure all of the necessary steps are taken to reduce risk of damage to the liner. Or a pond underlayment material can be used rather than sand.

Put the pond liner inside of the pone, and set some rounded rocks on the liner to help keep it in place. You can also add the rock waterfall now if you are adding one.

Start to fill the pond up with water, and then smooth the pond liner out of any big material wrinkles that are starting to form.

Get your pond pump set up, but don’t plug it in yet (if you have a solar pond pump, for now keep the UV panels away from direct sunlight), and then either attach your fountain head attachments that are included with the pump kit or attach an outlet hose if it is being used for your waterfall.

As the pond is filling up, use decorative rocks to put on the outside part of the liner, to help further secure its position. Then trim off the excess on the pond liner.

Plug the pond pump into an outdoor power outlet that is GFCI-approved, or if you have solar pond pumps, put the UV panels into a area with direct sunlight to start aeration and water flow.

Add aquatic plants and fish to your pond as desired.

Pond Liner Alternatives

Using a preformed pond is a good alternative for a pond liner. What is great about preformed ponds is they enable a consistent look without you needing to sculpture your pond on your own. They are perfect for aspiring pond owner who don’t want a lot of hassle when installing their ponds.

How to protect your pond plants and fish

After your pond liner has been placed inside of the dug hold, and the water pump is aerating and oxygenating the water, your fish and aquatic plants can then be added.

However, there are numerous threats that can be faced by pond fish, particularly from predators from above. So you need to consider that when you are designing your pond. If you have a shallow pond that makes it easier for birds to prey on your fish, and sloping sides makes it easy for foxes and cats.

You should place a pond net over your pond, to protect it against predators.


529 W Blueridge Ave #F110 Orange, CA 92865
(714) 613-0123
Original content source: www.koipros.com

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