How many Gal is this tank

old · May 19, 2011

I'm a bit rusty when it comes to math any more but hey it has been 37 years since I was in school and took math. LOL Any how how many gallons is a tank that is 6 foot long and 4 foot in diameter. Got some one who wants an old tank I have that is that size so they can use it for a septic tank. Ya not the best way of doing things but hey they have very little money so buying a tank is out of the question for them

jdamman · May 19, 2011

I come up with 564 gallons, although I don't exactly condone the usage. Hope there aren't any nosy inspectors near by. Here in Iowa, they are all over those sorts of things.
Anyone else?

Anonymous-0 · May 19, 2011

564 gallons.

Mike (WA) · May 19, 2011

603 gallons.

old · May 19, 2011

Thank you so now how did you go about getting the answer so maybe I can figure it out on other tanks. Also sounds like more then enough for a common septic system

Pappy · May 19, 2011

According to my steam powered abacus, About 580 gallons.

2x4 · May 19, 2011

state minimum used to be 750 gal. for single person residence, is now 1000 gal.

Anonymous-0 · May 19, 2011

Area of a circle is pi x radius squared in inches times the length in inches to get total volume in cubic inches. Divide by 231 cubic inches to get total volume. 231 cubic inches in a gallon.

24" x 24" x 3.1416 = 1809.6 (area of the circle)

1809.6 x 72 inches long tank + 130288.4 total cubic inches

130288.4 / 231 = 564.02 gallons

Jamo58 · May 19, 2011

Volume of the tank = (Area of the Circle) X (Length of the Cylinder)

A= Pi(r)^2
Your diameter is 4 so the radius r=2, Pi is a constant,
so Area of the Circle = 3.14159(2)^2 = 12.56636 square feet

A x L = V
12.56636 x 6 = 75.39816 cubic feet

1 cubic foot = 7.48051948 gallons so

Volume(in gallons) = 75.39816 x 7.48051948 = 564.017405 gallons

Volume = 564 Gallons

old · May 19, 2011

Do not know where you are but when I installed the one I have Missouri said 250gal was ok for a single person and 5oo for a couple but that was also more then a decade ago

old · May 19, 2011

Very few inspectors in this area plus being on private land way out in the middle of no where also helps. Also in the area few if any zoning laws in place to have to worry about

Mike (WA) · May 19, 2011

My bad. I used 8 gallons/cubic foot.

Wardner · May 19, 2011

Search on something like "tank calculator" or "tank volume" and there will be a page where you enter the length and diameter. They do square and rectangular tanks as well. Even do swimming pools.

Leroy · May 19, 2011

Here last I heard was 1,500 gal for up to 3 bedrooms, ad anouther bedroom and add anouther 500 gal.

buickanddeere · May 19, 2011

Don't fill it with more than 500 gallons.

504 · May 19, 2011

Minimum is 1200 gal now, just don t get caught, sewer is regulated in Missouri, and you can t do it your self any more, must have a license from the state.

Anonymous-0 · May 20, 2011

Take your pick.

http://www.calculatoredge.com/enggcalc/volume.html

36 Coupe · May 20, 2011

State laws states that new systems need a permit and inspection before covering.You can put in your own system but you must have a site evaluators design.All old steel tank systems around me have failed and have been replaced.A septic system is no place for patch work.

36 Coupe · May 20, 2011

Septic tanks must have baffles on the inlet and outlet.When the outlet baffle rusts away solids get in to the leach field and plug the system.You cant just dump sewage into a tank.Many lake side camps have pump out systems here.

Anonymous-0 · May 20, 2011

probably about 550 if you take thickness of metal off...

old · May 20, 2011

Guess I should have said the reason I asked is I own the tank I will be in no way doing any thing with the system other then they want the tank I have. Once the tank leaves my place I do not care what they do with it so I am only selling a tank nothing more

LeonardWD45 · May 21, 2011

Old I come up with 496 gallons.

Leonard

36 Coupe · May 21, 2011

I understand that but you are in a position to tell them why they shouldnt do it.Without baffles the tank is useless..When I handled building permits a fellow wanted to put a trailer on a lot that had a septic system on it.I talked with a neighbor who saw them bury an old milk cooler a few years earlier.He said it had to be pumped out often.I had to have a septic system plan to look at before I could issue a permit.I live in a small village where every mickey mouse system has been replaced.

36 Coupe · May 21, 2011

Systems are sized by the number of bedrooms here and soil types. My drain field is in gravel.My sons place a 1/2 mile away has a dense clay so his drain field is much larger.Soil can change 20 feet away so test pits should be dug to check soil types.

How many Gal is this tank

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