Math Wizz Needed

[Bderick67]

Here's what's invloved,

85 gallon tank full....so 85 gallons of water
120 gallon tank full....110gallons of water because of subtrate, decor.
4 5gallon buckets...I know at what point they actually hold 5 gallons

Start by removing 10 gallons of water from 120g tank

So I now have 85 gallons of water and 100 gallons of water.

By exchanging 10 gallons of water at a time, how much water would I need to exchange between tanks to make the water mixture equal in both tanks?

 

[ShadowBass]

You're saying you want the full 85g and the partially full 120g tank (100g of water), to have the same amount of water?

The only thing confusing me is what are the 5g buckets for? *scratches head*

By exchanging 10 gallons of water at a time, how much water would I need to exchange between tanks to make the water mixture equal in both tanks?

Under 10 gallons if I'm getting you correctly...

What's the difference between 100 and 85g? (100-85 = )

15.

You want the 2 tanks to both have equal amounts of water, correct? What is 15 divided by two?

7.5

So you need to take 7.5g out of the 120g tank and put it in the 85g tank.

100 gallons - 7.5 gallons = 92.5 gallons
85 gallons + 7.5 gallons = 92.5 gallons

Now both tanks are equal.

Came up with that formula myself, hopefully it's not too confusing.
There's probably some kind of proper formula somewhere, but I wouldn't know what it is.

That was way too easy though, I think I'm missing something. If so, maybe you can explain it a little more clearly and I can come up with the answer.

 

[bigspizz]

Drain 45 gal from each and you will be awe-fully close....

 

[sncboom]

Drain 45 gal from each and you will be awe-fully close....

 

[bigspizz]

There is no way to insure the mix would be 50-50 at any point swapping 10 gal buckets. Take 45 like in a trash can or anything and that is the only way to make sure the mix is true........

 

[sncboom]

There is no way to insure the mix would be 50-50 at any point swapping 10 gal buckets. Take 45 like in a trash can or anything and that is the only way to make sure the mix is true........

Volume or chemical mixture...I thought he just wanted to know (for whatever reason) to find out about volume.

 

[bigspizz]

You're saying you want the full 85g and the partially full 120g tank (100g of water), to have the same amount of water?

The only thing confusing me is what are the 5g buckets for? *scratches head*



Under 10 gallons if I'm getting you correctly...

What's the difference between 100 and 85g? (100-85 = )

15.

You want the 2 tanks to both have equal amounts of water, correct? What is 15 divided by two?

7.5

So you need to take 7.5g out of the 120g tank and put it in the 85g tank.

100 gallons - 7.5 gallons = 92.5 gallons
85 gallons + 7.5 gallons = 92.5 gallons

Now both tanks are equal.

Came up with that formula myself, hopefully it's not too confusing.
There's probably some kind of proper formula somewhere, but I wouldn't know what it is.

That was way too easy though, I think I'm missing something. If so, maybe you can explain it a little more clearly and I can come up with the answer.

Too much, the tank will over flow.... I think they are looking to make both tanks contain the same water so to speak, by mixing them.


Thats how I read it..lol

By exchanging 10 gallons of water at a time, how much water would I need to exchange between tanks to make the water mixture equal in both tanks?

 

[ShadowBass]

Nevermind

 

[ShadowBass]

Too much, the tank will over flow.... I think they are looking to make both tanks contain the same water so to speak, by mixing them.


Thats how I read it..lol

Alrighty, I'm a moron, I wasn't even thinking about the 85g tank being full, lol.

*should not post so late*

 

[bigspizz]

Nevermind

And then throw the 45 gal taken in to the opposite tank it came from......





Edit: lol It's all good. I am not typing that clear either. The only other way is to swap 10 gallons at a time till the cows come home and the mix will also be 50/50 however draining a larger volume insures that at least that amount of original water was properly mixed.....