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How to build a DSB?


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  • SRC Member

:P Hi Reefers,

I would like to know how to build an effective DSB? I understand that we need at least 4" and above of sand to consider deep. But, do we use different grades of sand and gradually build up to the depth or just one grade will do? Which grade is consider recommended for use? Do we lay anything like mesh between layers? Does DSB require maintenance?

Please kindly advice.

Cheers!

:bow:

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  • SRC Member
70% Grade 0 and 30% Grade 1. Is it true to have the coarse ones at the lower layer? Is it okay just to have all Grade 0 or Grade 1?

After a while, Gravity will do its job - the fine grain sand will sink as it compacts below the coarse grain....

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