Pool Half Drained due to Light repair - start up chemistry

[JennJennRn]

We had to drain our pool halfway in order to repair lights. Our pool is almost a year old. Can you please help me know which levels to bring into balance first? Is it too early to add salt?

Chemistry from 4/2/18:

TC: 2.0 ppm
CC: 0.5
pH: 8.2
CYA: 50
TA: 170
Salt: 2250 ppm
Calcium: 275 ppm
Pool Temp: 67 deg F

 

[Texas Splash]

Can you please help me know which levels to bring into balance first? Is it too early to add salt?

Sure, I would recommend the following:
1 - Give your water a bit more chlorine (use regular bleach if you have it) just to kick start it and keep algae away. I'd increase the FC to about 5-6.
2 - Start increasing your stabilizer for a CYA goal of 70.
3 - Lower the pH down to the mid-7s with muriatic acid
4 - Sure, add salt as necessary to replenish what was lost from the partial drain.
5 - Finally, adjust the SWG and/or pump run time to maintain the proper FC level for your SWG pool.

Later, once all of those things are good, you might consider lowering the TA a bit. Refer to the TFP Pool School - Lower Total Alkalinity page for more info. Hope that helps.