Shocking New Pool

[V.Todd]

We finally got the new pool filled. However it took a while and with rain we have algae. During the fill we kept chlorine in the pool with some CYA and brushed it every day so the ins't any rings or slimy feel to the vinyl. The pool is clear enough to see sides and bottom but green tint.
Current readings:
Chlorine 6 ppm
TA-110 ppm
CYA - 20ppm
pH - 7.3
CH - 25 ppm

According to Pool Math we should bring shock up to ten (currently 6 ppm) which we have done. My question is the CYA target is 40 and am at 20 ppm...Pool Math notes to add 3 lbs & 11 oz. of CYA--should I add the CYA to that level while at shock level?

Any suggestions appreciated as this is our first pool.

Thank you!

 

[Msch99]

An expert should chime in soon, but
I would add cya to get to 30 while slamming, raise to 40 after you clear the slam.
No need to raise too high and use more bleach.

 

[ajw22]

Follow the SLAM Process step by step. CYA 30 is best for the SLAM Process. Add the stabilizer with whatever CL level you have.

 

[V.Todd]

• Backwash or clean the filter as needed

We have a sand filter and was needing information on when the appropriate time and/or indicators was to backwash or if at all during SLAM.

 

[ajw22]

• Backwash or clean the filter as needed

We have a sand filter and was needing information on when the appropriate time and/or indicators was to backwash or if at all during SLAM.

When filter pressure rises by 25% over clean pressure.

Routine Pump/Filter Maintenance

A working Filter and pump are vital parts for your pool. Read our artiticle on how to clean your filter & other Pool Maintenance Tips.

www.troublefreepool.com

 

[V.Todd]

Thank you

 

[V.Todd]

I have been slamming the pool since 8-3-2019. My cc is at 0.5 (since 8-4-2019), the water is clear but when I checked the chlorine early this morning for the OCLT indicates I lost 2.5 ppm last night.
My current weekly readings are: FC - 12.5 PPM
CH - 25 PPM
TA - 110 PPM
CYA - 30
Daily readings: pH - 7.8

Should I continue the SLAM at this point? Any suggestions a to what else I should do?
Appreciate your input

 

[mknauss]

SLAM Process
Once you meet the three criteria described in the article linked above, your SLAM is over.

 

[JoeSelf]

Have you checked your ladder? Does it fill with water?