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| The concrete collar is a key component of your pond as it acts as a reference point for the entire build Ironically, many are unable to see the importance of it and the "do I really need one" question pops up quite often on consults The collar is the first step in building a proper pond and it's one that shouldn't be skipped |
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| Other functions of the collar Besides maintaining stable rock work, the collar has many other key benefits. First, it defines the size of the pond. When your building larger ponds it can be very easy to lose sight of "a hose" or marker paint which defines the edge of your pond. Add the odd cave in, and your measurements and design will be altered dramatically Another important benefit is that the collar establishes level. On the typical DIY pond, you will often see 5 inches of liner on one side, and the pond about to overflow on the other. Aesthetically this looks terrible and being level is a 101 concept I remember one pond we built we found a large stone. It was interfering with the shape of the shell and needed to be removed. Without the collar in this instance, the whole side wall would have crumbled in. On more than 1 consult, insistence to install a collar has met with resistance. On one particular instance, the client did not heed my warnings. The following Spring I returned to see a collar had be installed. Laughingly, the client said "you were right". There had been several collapses and everything had to be rectified. Remember it requires work to reduce work To summarize, the concrete collar provides a stable base for your stone, it defines the size of the pond, it sets level for the build and stops soil from caving in |
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