Washing Gravel

[Genki]

Alright, so I'm setting up a near aquarium, and I'm using flourite for substrate...I'm getting a little concerned over how much washing it seems to take. I've spent about 45minutes rinsing half a bag of the stuff, and if I leave it with just water running over it the water will clear up, but if I mix it up the water will turn a brown/red color, so much so that you can't even make out the gravel while looking down into the bucket.

So, my question is...how long does it take to rinse this stuff, and to what extent am I supposed to be rinsing it?

Thanks!

 

[tsr770]

I used a plastic kitchen strainer and did about a cup of the gravel at a time running it under the water untill the water ran clear. Took a while to do 3 bags, but when I put it into the tank I had barely any clouding of the water.