Formula for gravel

To: aquatic-plants at actwin_com
Subject: Formula for gravel
From: Frank Ball <frankb at cougar_sr.hp.com>
Date: Mon, 23 Dec 1996 17:56:47 -0800 (PST)

 
& Tank size 5' x 2' x 2'
& 
& How do I determine the amount of gravel needed (in kilograms) if:
& 
& 1)I intend to have a gravel height of 3" throught
& 
& 2)I intend to have a gravel height of 2" at the front and slopes
& gradually to 4" at the back of the tank?

I've found 20 pounds / square foot gives a depth of about 3".  Finer
gravel will not be as deep.  Course gravel will be taller.  My gravel is
about 1/4" sized.

So thats about 9 kilos / sq foot * 20 sq ft = 180 kilos of gravel.

Your sloping arraignment will use the exact same amount as a constant
3" depth.


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	Frank Ball           1UR-M      frankb at sr_hp.com
 	Hewlett-Packard 		(707) 794-4168 work
	1212 Valley House Drive    	(707) 794-3038 fax
	Rohnert Park CA 94928-4999	(707) 538-3693 home
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