Physics Majors Respond

[gasman059]

<a href=showthread.php?s=&postid=14843802#post14843802 target=_blank>Originally posted</a> by lpsluver
I do not believe that this would help.

If fact, I find it extremely hard to believe that there is a significant enough CO2 build up in our houses that would cause this problem and not effect our health. I do not believe anyone of us has a house that is sealed up that tight and is that energy efficient. We are constantly opening and closing doors bringing new air into our houses. Scuttle holes to our attics are hardly air tight and would allow for air exchange.

Just my thinking and my opinion. I am not a physicist but I do have a couple of science degrees.

Yup- in my case a holiday inn stay did just fine.

 

[lpsluver]

LOL

 

[roblack]

My ph was 7.99 this morning, ac running most of night and windows closed. Shot up after window opened, not sure how much, but topped off at 8.22. Will leave window open and see how low it goes overnight.

 

[smchais]

Why don't you try to dose with Kalk? I know that whenever I dose with Kalk, it raises my PH. I thought that was the reason that people used calcium reactors and still dosed with Kalk.

 

[gasman059]

<a href=showthread.php?s=&postid=14849576#post14849576 target=_blank>Originally posted</a> by smchais
Why don't you try to dose with Kalk? I know that whenever I dose with Kalk, it raises my PH. I thought that was the reason that people used calcium reactors and still dosed with Kalk.

another yup!
schmais that is the exact reason to run a cacium and kalk reactor.

 

[coralfragger101]

I'm looking for easier solutions before I add on yet another gizmo to what already looks like a science fair project but that just may be the answer I go with.

Yesterday's numbers didn't tell me squat:

I was at 8.0 when I hooked the tube up in the morning. It took till early evening to hit 8.1 and was back down to 8.0 this morning.

But then again - it may have done a bit of good. I'm generally looking at 7.9 in the morning which is why I'm trying to correct this whole mess in the first place.

BUT adding a Kalk reactor doesn't fix the in home CO2 problem. It just puts a band-aid on it.

AND it does bring up another interesting question.

We use a CA reactor to add calcium to our tanks by injecting CO2.
It's the CO2 that helps drive down the PH.
Adding Kalk can help raise the PH but also is another way to add calcium into the tank.

Almost seems like we should just use Kalk rather than a CA reactor or both. Using both isn't there the possibility of adding too much calcium to the tank?

I have a liter meter just sittiing on the shelf. Maybe I should just start dosing 2 part and get rid of the CA reactor.

 

[roblack]

Ph = 8.10 at 9:50 a.m. today. Window left cracked all night, ac on. A difference of .11 from yesterday morning when the window was closed.

 

[coralfragger101]

That's not bad at all. But how much will it cost in elec. to run it that way?

 

[.::Jun77::.]

hey chuck, how are you?

why not run an air pump outside with a long tubing connected to an airstone to your sump?

BTW, i saw your other thread, congrats on your SPS growth, so let me ask, why fix if your getting a good growth and coloration?

 

[laud]

<a href=showthread.php?s=&postid=14845666#post14845666 target=_blank>Originally posted</a> by Paco
Let's think in terms of volume. 2000 square foot house, 8 foot ceilings, that's 16,000 cubic feet of air in the house. I doubt that 16k ft of air are rushing thru the door when you open it

I am by no means inferring that all 16k cf will be replaced, nor should you think that all 16k cf is saturated with CO2 either.

Think of the door opening as a small percentage air change, like a water change that is more frequent and smaller in dosage.

Just my opinion.

 

[loyalrogue]

Well I'm certainly no physics major, but the flaw I see here is that unless your entire tank system is completely sealed off from the air inside your home it is still going to be affected by the co2 level that is in contact with the water surface which is where the main exchange of gases occur.
I'll be following along to see your results and maybe learn something.

 

[Paco]

<a href=showthread.php?s=&postid=14851105#post14851105 target=_blank>Originally posted</a> by laud
I am by no means inferring that all 16k cf will be replaced, nor should you think that all 16k cf is saturated with CO2 either.

Think of the door opening as a small percentage air change, like a water change that is more frequent and smaller in dosage.

Just my opinion.

Yes, all 16k cubic feet are saturated to the same level in the house -- just like in your tank, if you have 50 ppm of nitrate, all the water in your tank has 50 ppm nitrate -- no matter whether it's a gallon from the top, middle, bottom, etc. And if you have a 200 gallon tank w/50 PPM nitrate, and you change 20 gallons, you still have 45 PPM nitrate. Same in the house -- you open the door, you exchange maybe...1% of the house air and your 1000 PPM Co2 goes down to...990! So unless you go in and out hundreds of times per day, you are not significantly reducing the Co2 build up that's created by you, anyone else in the house, your dog, etc.

Hope this helps.