You don't want to rinse live sand. Rinsing live sand will totally defeat the purpose of having live sand in the first place. Rinsing it would wash way most of the small worms, pods
, baby stars, etc.
You can use this method to add sand to an existing tank.
Assuming your adding the sand to a bare bottom or a bottom that already has sand you can skip the first step.
1. If your add it this sand to a tank with CC then move the CC from 1/2 of the tank over on to the other half.
2. if the sand is in a bag then lower the bag (closed) into the tank and turn the bag over so the opening is down on the bottom of the tank. Then slowly pull the bag across the 1/2 side of the tank and rase the bag up. The LS
should flow out into the tank with minimal clouding.
An alternate method is to use an empty 2 litter soda bottle. Cut the bottom off of it so you effectivly have a funnel. pour the sand into the bottle with the top on. then lower it into the tank slowly and then remove the top of the bottle so the sand just flows out.