Having trouble with air in the line

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BAMatter

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Cross posted on FB…

X10 has been working well after I did some “air in the lines” troubleshooting. Been pretty solid for about 2 weeks, now I’m getting air in the lines again. Have made sure the connections are all tight, lines primed and calibrated. Had an errant alk reading that made me look with a flashlight and both sides of the dosing head have air. Is there a better tubing we can use? Not sure how much I can mess this up but seemed odd that it was working so well then started causing issues overnight… any tips, help here?

Is it worth it to try a Hydros 2ml/min run off the XP8 for my reagant line??

Is the 2ml/min pump more accurate than the X10 pumps?
 

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BAMatter said:
Cross posted on FB…

X10 has been working well after I did some “air in the lines” troubleshooting. Been pretty solid for about 2 weeks, now I’m getting air in the lines again. Have made sure the connections are all tight, lines primed and calibrated. Had an errant alk reading that made me look with a flashlight and both sides of the dosing head have air. Is there a better tubing we can use? Not sure how much I can mess this up but seemed odd that it was working so well then started causing issues overnight… any tips, help here?

Is it worth it to try a Hydros 2ml/min run off the XP8 for my reagant line??

Is the 2ml/min pump more accurate than the X10 pumps?
Click to expand...
If you are getting air in the line then there is an air leak in the line somewhere. I use the X10 and noticed air bubbles. I replaced the tubing from the reagent reservoir and the pump and that fixed the issue. I check the tubing I removed and found a small pin hole at one end. I clipped off that end but have not installed it again. I have not had an issue with air bubbles since.
 
Danny said:
If you are getting air in the line then there is an air leak in the line somewhere. I use the X10 and noticed air bubbles. I replaced the tubing from the reagent reservoir and the pump and that fixed the issue. I check the tubing I removed and found a small pin hole at one end. I clipped off that end but have not installed it again. I have not had an issue with air bubbles since.
Click to expand...
Is there a better quality tubing?
 
Danny said:
I like the tubing that comes with the X10. I think mine was because I was having trouble getting that one on the pump the first time.
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I’ll take your word for it… thanks! I’m sure I’ll get it sorted.

Also, can you help with something regarding salinity? My sampled salinity is reaaaallllyyyy low like 23.7ppt and I just calibrated. The probe would read 35 and 28 when I checked the calibration. Made sure to blow all the water out, and the top probe holes are not covered up..
 

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BAMatter said:
I’ll take your word for it… thanks! I’m sure I’ll get it sorted.

Also, can you help with something regarding salinity? My sampled salinity is reaaaallllyyyy low like 23.7ppt and I just calibrated. The probe would read 35 and 28 when I checked the calibration. Made sure to blow all the water out, and the top probe holes are not covered up..
Click to expand...
Those numbers are not what I get on mine. What probe are you using?

IMG_0314.png
 
BAMatter said:
Using the probe that came with the salinity kit..
Click to expand...
Do you have it set as a K10 probe in the settings? That is why I was asking what probe you were using. As far as what is normal for the readings I am not sure but mine is reading good but I also have a temp sensor in the iV beaker and use it as temp correction for the pH and salinity probe. Mine would drop to about 33 when we had cold weather. I have central heat and the thermostat is set to 74 but apparently that was enough of a difference.
 
Danny said:
Do you have it set as a K10 probe in the settings? That is why I was asking what probe you were using. As far as what is normal for the readings I am not sure but mine is reading good but I also have a temp sensor in the iV beaker and use it as temp correction for the pH and salinity probe. Mine would drop to about 33 when we had cold weather. I have central heat and the thermostat is set to 74 but apparently that was enough of a difference.
Click to expand...
Yea it’s K10 set. I had originally had it K1 and got 4 digit readings instead of 5. Are the numbers I have really that far off from yours? I don’t know the scale..
 
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