Is there any way to calculate how much air needs to be introduced to water to get the desired outgassing effect when trying to lower alkalinity?
chem geek said:Your method #2 will be VERY effective. There were some people on another forum who used an air compressor with a nozzle that produced small bubbles at the end and found that is aerated and had the pH rise VERY quickly. The best nozzle was one that produced tiny bubbles but was not so restrictive that it prevented a large volume of air to be introduced.
Rangeball said:Richard, after I typed that down I started thinking about an air compressor, using a long hose and keeping it plugged in in my garage so it could replenish it's air when needed.
Hmmm...
It should be easy enough to fashion a nozzle of some sort . Could possible use a peice of PVC with an end cap drilled with several tiny holes.
I've notice less PH drift this year, my alk is hovering around 140 and I've only had to hit my pool with acid twice so far this season, but I do have high alk fill water. I'd like to get my alk down to 80 to give me some breathing room, but it doesn't seem to want to drop more than 10 ppm or so, even when I lowered my PH from 7.8 to 7.0.
MikeInTN said:No need to just drill an end cap - drill tiny holes up and down a length of PVC pipe, and put a solid endcap on both ends, and rig a fitting on one end to go to your compressor hose.