jdeb101
Non-member
As some of you may have already read, a few of us were discussing black sand in another thread. It was mentioned that it comes from lava and is known to leach. Does anyone know of any studies or articles on this?
And while we are discussing sand, what's everyone's opinions on these questions that have been lingering in my head.
- Is it necessary to replace the sand bed after a few years? Who does it and why?
- Besides flow, how do you all keep the sand bed clean? Do you rely on cuc? Do you vacuum it?
And while we are discussing sand, what's everyone's opinions on these questions that have been lingering in my head.
- Is it necessary to replace the sand bed after a few years? Who does it and why?
- Besides flow, how do you all keep the sand bed clean? Do you rely on cuc? Do you vacuum it?
