Pool is crystal clear. I am not seeing any of the pink bacteria growing any longer. Just dirt accumulating from wind and trees. I will drop the robot back in today
Please help me diagnose this! Pink bacteria
- Thread starter ghoover522
- Start date
-
- Tags
- algae dust pinkalg
- Jun 8, 2019
- 4,580
- Pool Size
- 20000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Great! Then it's just the OCLT passing that will indicate you're done with whatever it was. 
If you have trouble with getting that to pass just let us know and we can offer more possible concerns to check.
If you have trouble with getting that to pass just let us know and we can offer more possible concerns to check.It's really unbelievable that it takes 31 gallons or 10% Hypochlorite to get to this point for a 17,000 gal pool.
One more question for all of you. Is it recommended that I continue to drain the pool down each year due to the Hayward CL200 Puck feeder adding CYA or should I make the switch to a SWG solution in the long run?
- Jun 8, 2019
- 4,580
- Pool Size
- 20000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Sounds like you have the two options down. Third would be to use liquid chlorine instead, either manually adding daily / every other day, or with a stenner pump style setup.
I use liquid chlorine but am strongly considering SWCG - so far the consensus is that SWCG are the way to go.
- Jun 8, 2019
- 4,580
- Pool Size
- 20000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
You had something funky going on for sure. Glad that it's getting resolved!
- Jun 1, 2018
- 14,327
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Pucks aren’t recommended for daily chlorination here for the reason u noted- they continuously increase cya therefore raising the necessary min fc level pretty much daily making it hard to follow the FC/CYA Levels & making it easy to fall below minimum.
It’s really hard to hit a continuously moving target
Best to save the pucks for vacations. Your best bet for now is the liquid chlorine diet since your cya is already 50ppm - if manually dosing daily is a pain you can look into an automatic liquid chlorine doser (like the stenner) or a swg to add the chlorine daily whether u are there or not.
If u go the swg route be sure to get one rated for at least 2x’s your pool volume. So at least a 40k gal rated unit or larger. Their volume ratings are based on them running 24/7 @ 100% - that’s not really something u want to do unless u like replacing expensive cells often. With the prices of trichlor & even liquid chlorine now the swg costs are getting more & more worth it by the day. Upon my last calculation in March a circupool universal 55 would pay for itself in 1.67 seasons vs liquid chlorine in my pool. I have no idea the comparison to trichlor pucks but i bet its even better especially if u factor in all the baking soda needed to keep ta up & all the water replacement due to high cya.
- May 3, 2014
- 59,565
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
You need to drain much more often than once a year. When CYA gets to 60, then 1/3 to 1/2 drain. Repeat.
SWCG is great. Short season makes it more difficult to justify on purely economic reasons.
8/17/22
9am
Free chlorine 20ppm
Chloramines.0ppm
10pm
Free chlorine 20ppm
Chloramines.0ppm
8/18
6am
Free chlorine 19ppm
Chloramines.0ppm
9am
Free chlorine 20ppm
Chloramines.0ppm
10pm
Free chlorine 20ppm
Chloramines.0ppm
8/18
6am
Free chlorine 19ppm
Chloramines.0ppm
- Jun 1, 2018
- 14,327
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Okay so now I need to maintain a Free Chlorine level of 8-12ppm just to be safe. And I need to keep an eye on rising CYA it sounds like as well. Thank you all!
- Jun 1, 2018
- 14,327
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Minimum for cya of 50 is 4ppm. Do what u need to do to stay above that.
High target
is 8ppm so dosing to that or a scootch higher with liquid gives u wiggle room incase of high bather load, high uv day etc. If u discontinue use of the tablets & stabilized chlorine products & use liquid chlorine your cya won’t continue to rise.
As cya increases your necessary fc min increases. FC/CYA Levels
Here’s how each dissolved 3” tab effects your water
Hello all: I just want to take some time here to thank everyone for coaching me through this SLAM process and encouraging me to stick to this. Chlorine has been much easier to control now in my pool, there is no sign of the pink bacteria returning, and the water looks incredible. The staining is even starting to lift now using Metal Magic and Jack's Pink Stuff at very low doses. Thank you all again so much!
My only issue right now is high CYA around 70? I am going to consider draining the pool by about 50% here using a pump and refilling to lower the CYA.
Thanks again!
My only issue right now is high CYA around 70? I am going to consider draining the pool by about 50% here using a pump and refilling to lower the CYA.
Thanks again!
There's no reason to drain to lower the CYA for several reasons. Firstly it degrades over time and secondly it's not anymore difficult to manage versus it was less you just have to remain a given FC and just top it off .....
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