Actual Water Volume

[UNCFAN]

;Bookworm;Bookworm;Bookworm;Bookworm;Bookworm A small math calculation for consideration. Let's assume we are starting with a 100 gallon tank and we've poured 100 gallons of water into this tank - now we add 100 pounds of sand and then we add 100 pound of rock. Some of the water will be displaced by these additions and drain down the overflows and into the sump.

The question is how much water is remaining in the tank itself?;Writing;Writing;Writing;Writing;Writing - the water in the overflows can be calculated separately. All we want to know is how many gallons of water is in the tank itself?

 

[UNCFAN]

Darn I was hoping someone could answer this question.

 

[phillygeeks]

Different sands and rocks have different and varying densities per rock and granule of sand. Unless you know the density of whatever rock and sand you have you won't be able to convert this to a volume in gallons of water that remain in the tank, unfortunately.

 

[phillygeeks]

If you want to figure out this maybe fill up your tank with water and then fill up with your desired sand and rock. Whatever is displaced subtract from your filling volume and then you will have your answer in how many gallons are left in the tank

 

[Sierra_Bravo]

There are two calculators that I know of that try to compensate for rock and sand:

http://reef.diesyst.com/volcalc/volcalc.html
http://www.garf.org/calculators/tankvolumecalculator.asp

The first one was pretty darn close to my actual for mine.

 

[UNCFAN]

Sierra_Bravo - perfect thank you!!!!