First time "slamming" have a question

[rwb1]

I was away for a few days and my chlorine level when I returned was @ 0....Its in the 90's here and I noticed what I thought was dirt in the pool so I jumped in and it was more like a brownish slime...I am assuming some sort of algae.
I added an algecide and raised the FC level to shock level which according to the chart was 16 with a cya level of 40ppm.

I have maintained that level ...or as close to it as I could with work and ran the auto pool cleaner two times, tested the water tonight before the addition of chlorine and got these #'s

FC=10
ph=7.5
alk=80
cya=40
cc=0

water is crystal clear ......my question is since I lost chlorine overnight, should I continue to keep the pool @ "SHOCK " level or let it come down a bit and maintain @ 5ppm like normal.
Like I said no more brown slime ...which wasn't horrible to begin with and the water is beautiful.

This is my first full season with the BBB method and I want to make sure I am doing it right.

As always thanks for the help

 

[Texas Splash]

To pass a SLAM, you still need to pass the OLCT and have CC <=.5. I would continue just to ensure there is no doubt all algae and organic matter is gone. That OCLT is very important and the FC must be high when doing it. You sound very close though.

 

[pabeader]

any loss at night is attributed to algae or something organic. So you have a little more time at SLAM level ahead of you. Maybe not too much though.

 

[rwb1]

So my CC is @ "0"....but my OCLT needs to be 1ppm overnight...so keep on slamming !!

Lesson learned....never neglect the pool because this is a pain in the A## !!

 

[rwb1]

I was doing the OCLT wrong....I was waiting until later in the day to test, not first thing in the morning....must have missed that in "pool school".

Tested the water last night ....was a little high @ 18ppm...tested first thing this morning and it was 17ppm....Slam complete.....now just let the levels come down to normal levels and add as needed?
Another question I have is my PH never seems to fluctuate, stays pretty much @ 7.5 ish...is this normal ? I have friend who are constantly adjusting there PH.

thanks

 

[Texas Splash]

SLAM complete! As for PH, no worries. A steady PH is a happy PH. Don't mess with anything if it's not needed. Now you just need to swim.

 

[rwb1]

Whats a safe chlorine level to swim....?? Hopefully it will come down in the bright sunshine today :sunny:

thanks for the help

 

[Texas Splash]

Your chlorine level (FC) is safe to swim as long as it does not go over the FC SLAM/Shock level for your current CYA based on the Pool School - Chlorine / CYA Chart.

Have a nice weekend!

 

[rwb1]

So now I maintain @ 5ppm FC and all should be good or should I add a low dose algecide weekly.?

 

[Texas Splash]

We never recommend the use of algaecide as it tends to cause more problem with water (i.e. copper). Maintaining the proper FC/CYA ratio will keep your water algae free. You can always adjust your CYA and FC levels (together) based on the amount of sun your pool receives. But always refer to that chart. I always like to keep my FC at least 1-2 ppm over my target FC to be safe.

 

[rwb1]

Thanks for the help...I will keep my FC @ 7ppm with a CYA of 40...sounds like easy insurance.