As I said earlier, he doesn't mean that it doesn't control nitrates. He means that it doesn't elimnate them. That is true for WCs up to 99%.
Adding Fuel to the Nitrate Debate: Why Water Changes DONT Reduce Nitrates
- Thread starter JardiniBoy
- Start date
As I said earlier, he doesn't mean that it doesn't control nitrates. He means that it doesn't elimnate them. That is true for WCs up to 99%.
wned:
Whoa dude, you are totally in the wrong...again. And now you are showing the world what you are made of. I am not trying to pick a bone with you and I am not trying to stand on my degree. It means very little in my world. You jumped my schitt three posts into my first thread all for posting a bunch of math and trying to help someone avoid a disaster? (now I am sounding harsh, and for that I am sorry) With your construction skills, you should have chimed in with how to improve UltimateJay's stand, not bash the person giving the help.
And yes they are having a healthy debate, a little heated at times too, but a mind that is once stretched never returns to its original dimensions. Don't hate someone because they have something that you do not. I spent the better part of the last 20 years doing crappy jobs including construction. I know hardship. I only got my degree because of my own hard work and sacrifices. I sat in classes where the oldest student was half my age. Four of my professors were even younger than me. I am where I am today by my own credit: I took the easy road and I took the tough one. I am you...I just had to make a difference. I couldn't imagine myself at 60, looking at retirement, nothing saved up, and looking back at a wasted life.
There is no reason you have to spend the rest of your life where you are at. Anyone over the age of 24 can get a college education courtesy of Uncle Sam. You just have to be able to put down the beer and tell your friends not to call for the next four years.
And for the pompous statement in my signature, I earned that 100% and I have to brag like a little kid that just got his first A. Somebody give me a bumper sticker that says "I am the F'in Honor Student"! (I already have the one that says "my kid beat up your honor student").
More math will break my last functioning brain cell. Besides, many calculus problems are solved logically rather than plugging numbers into a calculator. (do a search for Calculus Integration Problems) An asymptote is a point that your results approach but only reach at the end of infinity. They often quickly come immeasurably close after a short period of time. In Calculus, many of these "infinity" problems are uncalculatable; but that does not matter. What matters is what the asymptote is. Who cares what that miniscule difference is. It is not measureable anyway. (see the above teaspoon on a full dumptruck example.) Anyway, the asymptotic nitrate level is determined by your fish/waste load. If you break down the measuring interval down to extremely small time increments, they will remain constant through one second or one week. Now if you add those increments for the whole week, you will have your total nitrate level (say 20ppm as in the early example).
Now lets look at the water changes. If you change all at once 50% of say 100 gallons is 50 gallons...lets just say. Now if you set a drip system in an identical tank to change a total of 50 gallons during the week...we are really breaking the change interval into one drop increments over the course of time that it takes to form the next drop. (Sorry if this is too much mumbo jumbo, I am trying to be as detailed as possible.) (by the way, Mumbo Jumbo really is a mathematical term, jk.)
Anyway, what I am trying to show is that if the water is being replaced at a constant rate and the nitrates are being replaced at a constant rate, when the asymptotic level is reached it will be the same level as the tank that has the weekly changes.
How's that for a mind exercise?
Here is one in circular math:
Three men went to a hotel to get a room for the night,the night clerk charged them $30 for the room, so each man gave the clerk $10 ( 3 x 10 = 30).
The day manager comes into work, and realizes that the men had been overcharged, the room should only have cost $25 for the night.
The manager summons a bellhop and says take $5 and gave it back to the three men in the room. The bellhop is dishonest, gives each man back $1 and keeps $2 for himself.
So now each man has paid $9 for the room and the bellhop has $2 but (3 X 9) + 2 = 29. we started out with $30 so where is the missing dollar?
& yes i know the answer
It is better to do math without numbers, numbers confuse people. The numbers can be added in later
That was popular in my accounting classes! It must mean all business schools are the same.
Both of my accounting professors heard of it but had no idea how to answer it. The "I'm not telling" answer is the Order of Operations.
Holy crap dude! Are you a Statician or an Industrial Engineer? I am totally impressed!
I hate to say that there is a flaw in the calculation because when I clean my tanks im not so much changing the water but cleaning the gravel, I tend to notice that I get this **** colour coming up from it that is not in my water... hmm what could that be??? 
and what about the filters. Anyone take into account that your filter being a Bio breeding ground is changed every few weeks/months?? For some reason I think that the calculation is not taking into account the actual cleaning of ones tank and proper mantinance. I dont know many people who just change water. Tho the drip systems seem to do a great job as well.
and what about the filters. Anyone take into account that your filter being a Bio breeding ground is changed every few weeks/months?? For some reason I think that the calculation is not taking into account the actual cleaning of ones tank and proper mantinance. I dont know many people who just change water. Tho the drip systems seem to do a great job as well.That was popular in my accounting classes! It must mean all business schools are the same.
The answer is obvious though!
Love the sign, it is priceless.
And that is correct, there is no missing dollar even though the math says there is
The puzzle is why.