<commit_before>---
layout: post
title: OA Day 50 Activities
---

### Good news. We've actively used the  OA system for 50 days with no major catastrophes. Celebrated by spending the day water sampling and cleaning oyster poop; here's the summary:

* Primed the pH probe with low pH water from tank 2
* Labeled bottles
* Picked up Rick's Sond to measure salinity
* Animals were being fed (header tank was ~3/4 full). Because I was planning on draining them in an hour or so, I turned off the flow from the header tanks to the culture tanks to let the oysters eat. 
* Took water samples @ 1pm
* Measured grab samples for T, S & pH. I've been using both our salinity probe (even though it appeared broken, was trying to record uS/cm in case it was reading correctly), and Rick's Sond, but today the glass bulb on our salinity probe broke off. I only recorded Salinity via the Sond. Finished measuring @ 1:45pm. 
* Injected HgCl into bottle samples; finished this @ 2:05pm. 
* Cleaned all tanks. Method: <commit_msg>Update 2017-04-06-OA-Day50.md<commit_after>---
layout: post
title: Day 50 Activities
---

### Good news. We've actively used the  OA system for 50 days with no major catastrophes. Celebrated by spending the day water sampling and cleaning oyster poop; here's the summary:

* Primed the pH probe with low pH water from tank 2
* Labeled bottles
* Picked up Rick's Sond to measure salinity
* Animals were being fed (header tank was ~3/4 full). Because I was planning on draining them in an hour or so, I turned off the flow from the header tanks to the culture tanks to let the oysters eat. 
* Took water samples @ 1pm
* Measured grab samples for T, S & pH. I've been using both our salinity probe (even though it appeared broken, was trying to record uS/cm in case it was reading correctly), and Rick's Sond, but today the glass bulb on our salinity probe broke off. I only recorded Salinity via the Sond. Finished measuring @ 1:45pm. 
* Injected HgCl into bottle samples; finished this @ 2:05pm. 
* Cleaned all tanks. Method: 
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