**sarahp**
Fishaholic
Theres no need to take all the water out...
Take a syphon hose, suck out the sand on top by holding the end far away, so it just takes the top layer of it off, syphon it into a bucket (or two depending on ammount). Remove the water that came with it and wash through. Now use another bucket, remove the laterite (or whatever it is...) into another bucket, then the rest of the sand into the first bucket, then give it all another good wash. Then replace the sand/laterite as needed. No need to empty all the water!
Ooooo thats clever - would never have thought of that

