Evaporative cooling and ph problems....

[CJO]

It's still CO2. The CO2 level around most houses doesn't drop until you are 5 to 10 feet away.

Try adding buffer instead of kalk for a short period and see what happens. Be careful to do it only for a short period and then switch back to kalk. I bet the pH doesn't go up much with the buffered water versus RO, if at all.

CJ

 

[dzel]

Would having an ac running also drop ph?

 

[AZDesertRat]

Yes if the house is sealed tightly like most modern homes are for energy efficiency.

 

[johnanddawn]

i am a science teacher and recently got the equipment to run a "biotope" type experiment measuring O2, CO2, DO and a few other paramaters in a closed enviromental chamber.
while trying out the equipment, before actually setting up the experiment last year, i measured the CO2 to be extremely high indoors (i was actually quite surprised how high)

houses closed up for summer cooling or winter heating have a lot CO2 build up
surface agitation and skimmer air dissolve some of that CO2 in your tank water and therby add carbonic acid to the system

all of us deal with this to some extent and this is why i think topping off with kalk is important

 

[AZDesertRat]

It would be neat to see the results of some of your experiments. I'm a certified geek when it comes to all things water related!