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RE: How do you test a CO2 Probe

I have been having trouble with my Pressurized CO2 system. I filled the 5lb tank several times and it has depleted quite fast.

When I first got the tank it lasted at least 6-9 months, maybe longer. Now I filled it and the Tank and the tank pressure looked good. The tank emptied with in about 3-4 weeks. Then I filled it again and checked for leaks, something I did the first time. NO leaks were found. Don't ask how I checked the tank for leaks unless you don't know how that is done. I use some Snoop. The tank again emptied fairly quick about 6 weeks this time.

I have noticed that the CO2 has been on longer than when the system was new, and the SMS 122 would show a higher pH than it is set for. I have it set at 6.8 but readings would be around 7.1 and takes forever to get to 6.8 if it does that at all. The reason I say that is that the tank it is hooked up to is not at my primary home and I do not moniter frequently. It may be on constantly. I just don't observe it but 2 times a week and most of the time the CO2 is on.

I have checked the calibration of the MA911B/2 CO2 probe and it seems to be ok when using 7.04 calibration fluid. But I still think that there might be an issue with the probe since when tested with the cal. fluid it seems to be ok but the CO2 seem to be on constantly and is drained from the tank in just a few weeks.

My question is how to test the probe with another method other than just calibration fluid. I have read somewhere that you can use Windex W/ ammonia to determine if the probe is working properly. You would dertemine that by reading the pH results on the moniter. Has anyone read or knows of a way to test the probes to see if they are working properly???

Once again, I have checked to see if I have any leaks and none have been found, but CO2 tank is being drained quite quickly and I suspect that the probe is no longer working properly but want to test before I spent the $30.00+ for a new probe.


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