OMG Green

[bearclaw20]

We have never had an algae problem in 5 years with BBB...however I just got home and walked up to our pool and about freaked out....

It is a light lime green...HELP!
Here is the back story...since starting back to work in early Aug...pool hasn't been swam in for about 3 weeks...however bleach has been added every 2 days as needed by the hubby. 2 days ago he said he noticed a lot of algae on the bottom of the pool so he topped up bleach level and then today when he got home he decided to put our shark in to clean it. I am now looking at a super green pool...I believe the shark stirred up everything on the bottom and now it is free floating.

I just checked levels

FC is at 2.5
CC is at 0

So how do I get ride of the green and get my pool back sparkling again?????? Never had this happen before---

 

[jblizzle]

SLAM it. [slam:c76utth2][/slam:c76utth2]

What is your CYA?

 

[bearclaw20]

Cya is 40...so I know to shock up to 16....
Since we have never had this problem...is it going to be a disaster to try to get ride of....or fairly easy once I slam it?

 

[bearclaw20]

Ok and is it good that CC is still at 0?

 

[Butterfly]

Ok and is it good that CC is still at 0?

yes, zero cc is good. You could be catching this early. Give us all the test results please :-D

 

[Butterfly]

What filter do you have? Don't see it in the sig.

 

[bearclaw20]

Dough Boy Sand filter-
FC 2.5
CC 0
CYA is actually 30
PH 7.8

Hubby said it was clear just a little green on bottom, however once he put the shark in it is light lime green and cloudy.....

Thoughts???
I am fixing to add liquid bleach to shock level for 30 cya and then check in 2 hours and keep going....

 

[Butterfly]

You are correct This sounds like a quick SLAM. Don't forget the 3 tests. See red lines in my sig.

 

[bearclaw20]

Ok thanks! I have the process started......
Wish me Luck! Will update later with results

 

[pwrstrk]

Don't forget to check other things like steps,ladder,solarcover,toys etc.

Algae likes to hide !!

 

[chem geek]

It sounds like the FC wasn't consistently maintained. The dosing might have been consistent, but the chlorine may have become low for whatever reason and then algae started to grow faster than it could be killed. Did your husband test the chlorine level or did he just add the same amount of chlorine each time? At 40 ppm CYA, the FC really shouldn't get below 3 ppm and your 2.5 ppm measurement may not be the low point. Also, the bottom might not have the best circulation. Anyway, SLAMing the pool will get it back to normal.