High PH with cold water...spring opening.

[Grumpybear]

Hi Folks;

Just removed Loop-Lok cover last nite.

Usual dark green swamp!!!

This morning tests show high PH.

The test #'s
Temp: 52*
FC: 0
CC: 0
TC: 0
PH: 8.2
TA: 50
CH: Vinyl
CYA: <20 (cloudy but can just see black dot)

1. Is high PH caused by the cold water temp?
2. Do I need to lower PH before starting to "Shock and Hold"?
2. I use liquid Chlorine to open and shock, pucks for maintenance, so CYA slowly climbs thru the season(May-Sept. 1st.)....so do i need to raise the CYA
before I start the "Shock and Hold"?

Thanks again for the awesome resource this website and to it's Mod's and members.

Have a Great Day,
Dave

 

[FamilyGuy]

Not positive on the temp diference for ph but i would lower it then go ahead and slam

 

[duraleigh]

1. Temp has little effect. You could always let sample warm to room temp for confirmation but it'll be close to the same.

2. We call it SLAM, but yes

3. I would say no. You want the CYA up to around 30 ppm to SLAM properly and the pucks will take too long for that to happen.