Hopefully I can shed more light here......
So what your saying is that an alarm rings and your doing what is needed to prevent losses in the whole tank... I guess alarms must work since your using them as well
I've lost many animals due to not enough time. I'd say 1 out of every 10 times a MAJOR oops happens, you get to save animals. The other 9 times, you lose them.
how many major oopses have you really had? of those "oopses" how many of them were preventable with adiquate funding (pre-oops)
Since when does a plumber have anything to do with the display and it's issues, Perhaps that is why it's taking your facility so long to swap out the pumps?
Often times one or two people are responsible for a large tank. They have to do it ALL - plumbing, electrical, LSS, water Q, feeding and the rest of it. Swapping out a 25 hp pump with a 8" line running to it is not something one does lightly, nor alone.
So yet again lack of funding being the main reason for the "jack of all trades", The problem with that is that it's not always the best way to do something, I mean I'm able to do everything in construction but I know that a plumper is better and will get one when it's needed for sake of speed, and ensuring that it is properly done just as I would let an electrician do the wiring when there are issues of code and complicated runs as they are going to get it done and get it done right in a quick and timely manner with far less chances of something being done improperly since they are specifically trained to deal with each of their specialties.
If the sensors /meters had been in place then there wouldn't have been an issue to begin with as they would have seen the DO drop and could have corrected it... Apparently just splashing around in the display was enough to fool "subsiquent tests" which also tells me that they have NO LIVE MONITORING!
That is part of what I was trying to explain earlier. If you have a DO meter and it goes off b/c the level is low. Too late...you're level is low in the display. By the time you get it back up to a good level, the animals are dead or close to it. Kind of similar to some of the stuff I've talked about when cautioning the used of ozone.
The person who commented that splashing in the display works was not an animal person and had no clue what they were saying. That amount of splashing wouldn't do crap in a large system that had crashed. We use medical grade compressed oxygen on difusers to saturate the water. And even then it takes HOURS to do.
Why would anyone set the alarms so low to only ring once it would be a fatal situation... their are ranges which are correctable and are high and low end safe... once your headed towards a low safe end...alarm! It's really not as complicated as your trying to make it seem, I know it's a funding issue and that you guys NEVER get what you need but if you don't use these types of incidents to prove your case you never will cause lets face it... these are businesses and only out for the dollars they make and not the animals they keep.