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Urn water feature Urn water feature, why not? Urn water features are nice, but need more preparation than a "solid" feature, here is why. As it will be an urn which will be empty when off where will the water go? it will run back down the riser pipe back into the sump. This also means if its frosty the urn should not split as the water freezes because it will be empty. The sump must have a big enough volume to hold enough water to fill the urn and still cover the pump. If you have the riser pipe as tall as the urn, there by having a smaller sump this will mean the water will become stagnant, and soon become the home to "nasty little insects" very quickly, because it will be exposed when the feature is not running, So it is not such a good idea to have a riser pipe as tall as the urn. Please see diagrams below.
The pump required will need to be able to pump water to just above the height of your urn as a minimum (You can always turn a big pump down, you can not turn a small pump up. ) As the urn will be full of water this will also mean that when full it will be heavy, so you must support the urn with something solid and stable. (Bricks are a good idea) You should also carefully adjust the pump, too fast and the water will fill the urn too fast and splash out of the top. Not using an urn? see our page here This page is dedicated to Neil Beard
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