TCSy Chiller: Air Bubble at intake & 500mL added!
It was hard to read the TCSy Chiller level value this morning because it was oscillating noticeably between atleast 8.0 & 8.6cm! (it is usually holds a steady value.)
Removed the gray cover and I believe the level went "up" to a normal level near 10.0cm! So this had me look at TCSx chiller for comparison. TCSy chiller looks like it had a big air bubble with the white fabric mesh filter balloon-ing up (maybe this was pulled up by suction when I removed/pulled-up on the gray cover?); hard to tell, but attaching a photo of the big air bubble. This air bubble moved around a bit and this is probably the reason for the oscillating reading for the level noted above.
At any rate, I tried to adjusting the filter and the ring frame which holds the filter to reseat it such that the bubble would subside. After a few adjustments, the level did drop down to 8.0cm or below. At this time I started to fill the chiller. I probably added on the order of ~500mL, but this was after a few iterations of adjusting the filter and adding water. I was not able to completely remove the air bubble.
We will want to keep an eye on this chiller, it had been exhibiting odd behavoir as of late [level increasing(7/1, 7/7) and possible leak which "fixed" itself" (5/21)]. Will send an email to Jason/Betsy/TJ regarding this.
TCSx Chiller: Had level of 29.8 cm. Filled to 30.0 with 125 mL of water. This is normal for it.
Went out and checked on this and found there was still a small air bubble in the chiller reservoir underneath the mesh filter (as opposed to the wire filter that preceeds the mesh filter). I unsealed the mesh filter (the mesh filters create a seal around the reservoir opening when properly installed), which allowed the air bubble to clear, and reseated it. The water level dropped from 10.1 to 9.2 (this is normal when clearing an reservoir air bubble, as it causes faulty readings in the chiller level. This is a design "feature" of the chiller, and the reason why we unseal the mesh filter when topping off the reservoir (adding water with the filter still sealed is the most common cause of reservoir air bubbles)); I did not add water as even with this level change the chiller is still mostly full. I will monitor this over the coming days to see if there are any changes in water level and/or formation of a new air bubble.
Also, the fix for the water leak Corey mentions in his alog is described here.
One of the reasons we have been keeping the the filters not completely seated is because they can create false readings, perhaps from too good of a seal. I've reccomended that the filters be cocked at a slight angle to keep this from happening, with the risk that it might not filter 100% of the water.