Chlorine Drop...

[Rynz]

Last night FC level was at 5.5ish ... Pool has been solar covered , checked today 2.5??...Should i just add enough to raise it back to 5.5 or Slam?
Pool is very clear , yesterday PH was at 7.2 , i raised it to 7.5. that seems ok

 

[Smykowski]

3ppm drop with the cover on means there's something living in it. Time to SLAM. Do you have a full set of recent results to post?

 

[Rynz]

Na , no records saved . Just been adding slight chlorine daily to keep around 5.5. Just noticed today after tf-100 test the 3ppm drop.

 

[jblizzle]

So, do a full set of tests and report the results.

Then we will see if anything should be done before starting the SLAM process.

 

[Rynz]

Will do thanx

 

[y_not]

Is it a clear or opaque solar cover?
Clear won't block much UV, thus allowing CL breakdown.

 

[linen]

I noticed the "pool frog" in your sig. Are you using it? We would recommend against using it...no need to add copper to your pool water.