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What physical hole size is needed for a bulkhead?
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Hits: 99362
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How to use PayPal without a PayPal Account
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Hits: 75892
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Flushing Effect - Why does the water level go up and down?
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Hits: 62591
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What flow rates are possible with a Durso Standpipe?
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Hits: 61385
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How tall does the standpipe need to be?
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Hits: 47919
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Bulkhead hole diameter is not the PVC size!
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Hits: 45556
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What about the air bubbles in the sump?
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Hits: 41756
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Can a Durso Standpipe work without an overflow chamber?
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Hits: 40931
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How much room do I need or will a standpipe fit in my small overflow?
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Hits: 36632
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Can a Durso Standpipes work in a hang-on the back overflow?
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Hits: 36295
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What size PVC do you use?
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Hits: 32468
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Are the Flexible Durso Standpipes really flexible?
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Hits: 32372
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Should the End Cap be above or below water level?
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Hits: 31804
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Can a Durso Standpipe work externally?
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Hits: 30879
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Why do some standpipes use PVC with a wider diameter than the bulkhead and some do not?
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Hits: 30230
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Is a Durso Standpipe Adjustable?
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Hits: 29540
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My bottom glass is tempered, will a Durso Standpipe work with a bulkhead on the side of the tank?
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Hits: 29489
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Are all of the parts on a Durso Standpipe glued?
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Hits: 28934
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I don’t know what size bulkhead I have, how do I order?
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Hits: 28190
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When can I expect my Durso Standpipes order to arrive?
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Hits: 26454
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What about International orders and metric fittings?
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Hits: 26418
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What is a bulkhead?
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Hits: 20968
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