Green to Blue II and I w/ Floc

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angfiggy

Well-known member
Sep 2, 2017
87
NE
Pool Size
22000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hello!

I decided to try Green to Blue II. A friend that had owned pools for a long time highly recommended it. My pool this summer has been really clear and lovely. However, three weeks ago my robot, Pentair Prowler 920, died. I thought it was working and was throwing it in the pool and leaving and then coming back to fish it out after a few hours. The robot was really working for 2 minutes and then stopping. Too late (when the pool started to go just slightly green), I noted that the robot was not doing it's job. I raised the chlorine levels and tested often to try and keep things at bay, but the algae quickly moves in. I get a large amount of debris in the pool due to trees next to the pool, wind blowing, etc.

Fast forward to my question. Noted that Green to Blue II is a flocculant. I followed the instructions...set the pool to recirculate, etc. But, now it looks like the floc has simply captured the algae at the bottom. The top of the pool is clear and there is sludge on the bottom that immediately clouds up if touched. I am keeping the pool up to SLAM levels at this point, and yesterday vacuumed to waste (with a shop vac) a huge amount of gross yellow/brown water from the bottom. Today the pool looks slightly better.

Is this the best course of action? Keep SLAMMing? And should I go ahead and start filtering the pool or keep it off to make sure all the floc is out first. I put it at recirculate right now after bringing the chlorine back up to get things mixing. Also, note to self that you cannot vacuum out floc with a robot. Arg. Never using floc again.

CYA: 40
FC: 25
ph: 7.2
 
I don't understand what a robot failure has to do with water clarity issues?
You have algae because your free chlorine levels were too low - nothing to do with robot.

Floc is a disaster, as you've learned. Get it out of the pool and continue on with the SLAM Process?

What test kit do you own? How are you chlorinating?
 
idk. Whenever I cannot vacuum for an extended period, I get green that starts on the bottom edges underneath the large tree that grows right next to the pool. I should have started slamming earlier when I realized the robot was not working. I raised the chlorine level and was keeping the FC at 10. The green disappeared but then resurged. At that point, I thought I would wait until the robot was back in service because of the amount of chlorine I was dumping. Bad decision.

I have the Taylor K-2105.

I am currently dumping liquid chlorine from Menards. Just ran out and need to go get more. I dumped the Green to Blue I and II Crud on Monday.

How can I tell when the floc is gone? I haven't ever used it so I don't know what it looks like. It's clear that the algae is still clumping at the bottom, so I assume there is still floc down there? I don't want to go to "Filter" mode too soon on the sand filter.
 
angfiggy said:
Hello!

I decided to try Green to Blue II. A friend that had owned pools for a long time highly recommended it. My pool this summer has been really clear and lovely. However, three weeks ago my robot, Pentair Prowler 920, died. I thought it was working and was throwing it in the pool and leaving and then coming back to fish it out after a few hours. The robot was really working for 2 minutes and then stopping. Too late (when the pool started to go just slightly green), I noted that the robot was not doing it's job. I raised the chlorine levels and tested often to try and keep things at bay, but the algae quickly moves in. I get a large amount of debris in the pool due to trees next to the pool, wind blowing, etc.

Fast forward to my question. Noted that Green to Blue II is a flocculant. I followed the instructions...set the pool to recirculate, etc. But, now it looks like the floc has simply captured the algae at the bottom. The top of the pool is clear and there is sludge on the bottom that immediately clouds up if touched. I am keeping the pool up to SLAM levels at this point, and yesterday vacuumed to waste (with a shop vac) a huge amount of gross yellow/brown water from the bottom. Today the pool looks slightly better.

Is this the best course of action? Keep SLAMMing? And should I go ahead and start filtering the pool or keep it off to make sure all the floc is out first. I put it at recirculate right now after bringing the chlorine back up to get things mixing. Also, note to self that you cannot vacuum out floc with a robot. Arg. Never using floc again.

CYA: 40
FC: 25
ph: 7.2
Click to expand...
Like mentioned above, your green problem wasn’t caused by the cleaner. You just needed to make sure you stayed above the minimum chlorine level.

Second, is that SLAM level for CYA40 is only 16ppm. You risk damage to equipment by keeping it at 25ppm.

Edit: I see the proble may be that you don’t have the right test kit?
 
As a 6 year member, it seems like you should know the processes that we recommend and do not recommend pretty well.

Why are you trying all of these alternative methods?

You need to decide to follow the processes that we recommend or follow the pool store methods that your friends recommend.

angfiggy said:
A friend that had owned pools for a long time highly recommended it.
Click to expand...
What does your friend recommend now?

You need to read up on the basics.

Here are some resources to get you pointed in the right direction.

Pool Care Basics

Overnight Chlorine Loss Test

SLAM Process

PoolMath

FC/CYA Levels

Test Kits Compared







 
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