To me its about relaying risk ratios to people vs personal preference
If someone has never had a clouding event at their home setup their preference will be to not rinse at all and use a clarifier packet instead, or a light partial rinse, or some type of action which is not rinsing for hours until the sand is simply as clean as a snowglobe
They won't relay a risk % to someone they haven't personally encountered
The only way to encounter a problematic clouding event is to either have one happen at home -or- have one happen in a work thread where we promised someone their tank wouldn't crash or become clouded for days on end
Once someone experiences clouding from either of those perspectives, they will simply move to complete and total rinsing prep, there's literally no benefit to not fully prep rinsing there's only a risk
And I'm talking about bagged live sand, wet caribsea live sand marked no rinse necessary on the bag... not just dry sand which is obvious in any cup test that it must be rinsed or the tank will go totally opaque for days.
If someone actually produced sand that was cloudless like a snowglobe out of the bag none of this would matter (except during tank transfers where not rinsing absolutely has killed tanks that we have on file)
The only reason I get snooty on rinse prep threads is because the posters are simply never told or shown the risk of non prep rinse, it's how pictures like these exist:
There was simply no reason for this tank owner to endure solid brown water in a reef tank
They were given the statement that pre rinsing is bad, they'd lose bacteria (implying a reef tank cannot lose bacteria and still run)
OR they may have read in the chemistry forum pre rinsing in tap is bad because it exposes them to copper or phosphate
What they won't see unless I post it is:
If you are reading this thread to cure a tank invasion from a link I sent you, we do not need to identify your type of invasion here we do not need you to test anything at anytime regarding nitrate, phosphate etc Above all, we do not need to see a microscope slide picture of your invasion at...
www.reef2reef.com
*only* not rinsing for hours on end causes this issue in the pic above. Don't blame me lol above was the *live* sand marked no rinse needed right on the bag.
I simply wish folks could see the full picture of outcomes before they're told to rinse or not rinse, rinse well or rinse 25% etc
I wish anyone who mentions anything shy of total pre rinse in tap had a thread i could read showing that working well for others. It's always just about their own tank, the recommend not to pre rinse in tap water for eight straight hours per bag.