pH rise because of airstone

[Tommy Trichome]

yeah, these are the pumps I use in my rez's: http://www.google.com/products/cata...log_result&ct=image&resnum=6&ved=0CEcQ8gIwBQ#

I have three 40 galllon rez's with each one having an airstone and the above pump going 24 hrs/day. I never have any pH issues because of the airstone (btw - my room intake air is filtered) and never have any heat issues from such a small pump...

 

[BigBuck]

Just a thought but if the Co2 in the air is what is reacting with the solutions to change the ph, has anyone tried increasing the Oxygen levels in the air pumped in? Any effect?

 

[SKUNK420]

check this out:
http://water.me.vccs.edu/courses/ENV195Water/lesson7.htm

http://www.mrwa.com/OP-Aeration.pdf
OPERATIONAL TESTING
[FONT=CAPHNI+TimesNewRoman,Times New Roman][FONT=CAPHNI+TimesNewRoman,Times New Roman]Three basic control tests are involved in the operation of the aeration process:
• Dissolved oxygen
• pH
• Temperature
The concentration of dissolved oxygen can be used to estimate whether the process is over or under aerated. The pH test will give an indication of the amount of carbon dioxide removal. pH increases as the carbon dioxide is removed. pH can also be used to monitor the effective range for hydrogen sulfide, iron, and manganese removal. The temperature is important as the saturation point of oxygen increases as the temperature decreases. As water temperature drops, the operator must adjust the aeration process to maintain the correct DO level.
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