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Water Garden Supplies

Manual Pond Liner Calculator

Press Here to see How to Build a Backyard Koi or Goldfish Pond
Homemade Water Garden Filter Skimmer and Trickle Tower for Garden Ponds

The following box contains a very simple Manual Water Garden or pond liner calculator for calculating backyard pond liner sizes required to build your own fish pond or water gardens. Use this formula for the basic calculation to determine your pond liner size. Pond liners regardless of Garden pond configuration usually follow relatively close to this formula.

 

Measurements Required for Pond Liner Calculations
Length (A) Width (B) Max Depth (C)
ft ft ft
Pond Liner Length Calculator
2 x Max Depth (C) ft
Add - Max pond length (A) ft
Add - 2ft overhang ft
=Liner Length (D) ft
Pond Liner Width Calculator
2 x Max Depth (C) ft
Add - max pond Width (B) ft
Add - 2ft overhang ft
=Liner Width (E) ft
Liner Size Needed = (D)___________ft x (E)___________ft
Closest Stock Size = (D)___________ft x (E)___________ft
Pond Liner calculations for different pond configurations

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Once you have dug your pond but before the pond liner has been put in place make sure you remove any sharp rocks. It is a very good idea to put down some form of protection or underlay material before the actual water garden liner. There are proper commercial pond underlays available but I used an old carpet for my pond. Make sure that when you finish the top edge of your pond liner that you get the perimeter level, otherwise when completed you end up with liner showing one end of the pond and not the other. This is quite noticable when it is at the top of any body of water which will always be dead level.


Very early in the construction of my backyard pond a wood rim has been placed level securing the pond liner and my water garden is now ready for it's submerged pump for the biofalls and filtration system.

When you are choosing a submersible pond pump make sure you get a pump that is rated for continuous duty and get a pump which is capable of turning over the full volume of the pond at least once an hour whenever possible.

There are various types of pond filtration systems available which can be purchased ready to go for any size of pond you are planning to build. There are a couple of different basic types of filters, whether you want to go with a biofalls or a veggie filter of your own design or buy custom filtration systems we can help you find the proper pumps, bioballs, biological media or whole filtration systems where you can choose Biological Filter Systems, Submersable filter systems are for the most part for building smaller ponds and water gardens.

Skimmers are a fairly costly part of setting up a pond but in most cases worth the investment. If you have not got a skimmer the surface of the water becomes very hard to see through.
I have watrcress and other locally available water plants as part of the filtration system for my water garden / backyard pond Pond plants are expensive and plants purchased from local department store chains may not all be hardy enough to survive in your local area. When I was building my pond I collected a ton of plants from local lakes and ponds where I know they have the ability to withstand local weather extremes. There is a large selection of readily available pond building components in most rural areas, if you take the time to go exploring.

For floating plants I was able to find watercress which makes an excellent filtration plant in your waterfall. In addition the fish love to snack on it too if you place some in the main pond. (Not to mention you can take some in the kitchen for salads)

If your water level goes down don't assume a leak, you will lose water due to normal evaporation and from water usage by your plants.

This page was last updated January 10, 2008


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