Did i just give my family the Black Plague

Abnaxis

Well-known member
Jun 28, 2021
102
Indiana
Pool Size
6500
Surface
Fiberglass
Chlorine
Salt Water Generator
I'm not sure about exact timing for anything here. We were in the pool about 3.5 hours, so I think most events are at most 1 hour-ish apart

Just before we got in, I used my Taylor 9056 test kit with 5 drops of R-0001 and 5 drops of R-0002. This isn't the OTO kit that comes with the TF100 because it's what my pool store sells and I like that it reads from 0-10 FC instead of 0-5.

My FC supposed to be between 2 and 7. It read 2, which made me leery since we hadn't gotten in yet. However, my SWG has a "Super Chlorinate" option, which basically just runs it at 100% duty cycle for an hour. I'd never used it before, but this seemed like a perfect time to try it.

I used it, and we swam for a bit. Notably, there were multiple times we looked in the skimmer (there's only 1) while swimming because toys kept getting into it and my son didn't shut the door on it all the way.

About half an hour before we quit swimming, (after my wife and daughter already left but my son and i were sticking around a bit longer) I checked FC to see how the super-chlorinate did. It read 3, which I liked. I went ahead and restarted the sequence again because I would prefer a little more padding in my FC number.

A couple minutes later, I noticed the water coming out of the jets looked a little cloudy. I've noticed this before when the SWG is actively generating, I'm pretty sure on a normal day it's just bubbles from the electrolysis.

About 15 minutes after that, I couldn't see my feet in the water any more, it was so cloudy. That wasn't bubbles. I very quickly got myself and my son out of the pool

I tested AGAIN, and was back to 2 FC. While picking up all the pool toys I checked the skimmer again, and there was a dead mouse in it.

The whole thing is bizarre and disturbing. I'm 90% sure I checked the skimmer before we swan, but it's such a non-notable thing for me I don't have explicit memory of it. It was small, but I'd think my son or I would notice a dead rodent in the skimmer when either one of us had it open to grab toys out, but it's not like we were doing maintenance at the time.

At the same time, it's weird that a mouse would have run across my pool deck and jumped in WHILE we were swimming. The door was shut- the only way in would have been through the 1-inch vent hole in the lid. Then, it would have to drown and immediately start polluting my entire pool in minutes. That whole sequence stretches credulity with me, and makes me question my awareness of what was in the skimmer while we swam.

Everybody got a THOROUGH scrub in the shower after we got out, even those of us not in the cloudy water. But my children are both very small, and I can guarantee some of that water got in stomachs and lungs across the entire swim.

I'm not sure how to explain the events that happened, or how worried I need to be about them.
 
Just before we got in, I used my Taylor 9056 test kit with 5 drops of R-0001 and 5 drops of R-0002. This isn't the OTO kit that comes with the TF100 because it's what my pool store sells and I like that it reads from 0-10 FC instead of 0-5.
The 10 on that scale is for Bromine isnt it? Do you have a bromine pool?

Depending on what your other test results are, it more likely you have been under chlorinating for a while (perhaps caused by inaccurate testing) and not a mouse. Post up your test results from the TF100 using the FAS-DPD chlorone test and not the OTO.
 
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Post a full set of current test results from your TF-100.
Your latest PoolMath are over one month old.

As long as the mouse wasn't decomposing it's highly unlikely it would cause any issues.

Chances are your FC was too low.
 
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2 & 3 ppm fc is pretty low for most cya levels.
You want to follow the chart
FC/CYA Levels
Ps- “super chlorinate” doesn’t mean the swcg makes more chlorine faster.
It just sets it to 100% for a predetermined amount of time- usually 24 hours.
Depending upon your swcg model it can take many hours to increase your fc to the proper level.
Whenever you are behind on fc - use liquid chlorine to reach target fc levels then adjust your swcg run time/% so nothing nasty grows while you wait.
 
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The 10 on that scale is for Bromine isnt it? Do you have a bromine pool?

Depending on what your other test results are, it more likely you have been under chlorinating for a while (perhaps caused by inaccurate testing) and not a mouse. Post up your test results from the TF100 using the FAS-DPD chlorone test and not the OTO.
It goes up to 20 bromine.

Here's a quick Google result showing it.
 
Unless you have a bromine pool, that number doesn't apply.
If all you've used is chlorine, that comparator will read up to FC 10.

Post a full set of current test results from your TF-100.
How are you testing salt content?
 
Post a full set of current test results from your TF-100.
Your latest PoolMath are over one month old.

As long as the mouse wasn't decomposing it's highly unlikely it would cause any issues.

Chances are your FC was too low.

2 & 3 ppm fc is pretty low for most cya levels.
You want to follow the chart
FC/CYA Levels
Ps- “super chlorinate” doesn’t mean the swcg makes more chlorine faster.
It just sets it to 100% for a predetermined amount of time- usually 24 hours.
Depending upon your swcg model it can take many hours to increase your fc to the proper level.
Whenever you are behind on fc - use liquid chlorine to reach target fc levels then adjust your swcg run time/% so nothing nasty grows while you wait.

I don't have time for a full battery of tests right now, but I'll post when I can get to it.

I know super-chlorinate just runs at 100%--it's an hour for my model-- but my SWG is grossly oversized for my pool. Most of the time leaving it at at 7% is enough to keep my FC at 4-5, but the weather's been sunny here lately.
 






 
Unless you have a bromine pool, that number doesn't apply.
If all you've used is chlorine, that comparator will read up to FC 10.

Post a full set of current test results from your TF-100.
How are you testing salt content?
The only reason I mentioned bromine is because the other respondent was questioning the scale on my tester.

I'll get a full set of tests when I have time.

The last time I did a salt test I used the K-1766 kit that comes with the tf-100 salt set, but with a double size sample so it could read +/-100PPM instead of +/-200. My SWG has problems measuring that salt level so I needed better accuracy for comparison.
 
The cloudy water was likely caused by the hydrogen bubbles from your SWG running at 100%

It is nothing to worry about.

The chlorine in your pool will handle any contamination from the dead mouse.
 
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I don't have time for a full battery of tests right now, but I'll post when I can get to it.

I know super-chlorinate just runs at 100%--it's an hour for my model-- but my SWG is grossly oversized for my pool. Most of the time leaving it at at 7% is enough to keep my FC at 4-5, but the weather's been sunny here lately.
Update your signature with your swcg model 👍🏻
 
Grossly oversized SWG is what can create the hydrogen cloud in the small pool or spa.
 
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Grossly oversized SWG is what can create the hydrogen cloud in the small pool or spa.
But the hydrogen actually stays in the water? I figured since it's a gas it'd just fizz out.

I've seen little bubbles before, but only while it's in the active part of the dirty cycle and only when the pump was low. I've never run it for as long continuously as I did yesterday though
 
But the hydrogen actually stays in the water? I figured since it's a gas it'd just fizz out.

The hydrogen cloud clears up when the SWG cycles off. At 100% you never give the hydrogen a chance to clear out of the water.
 
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