CH Test Accurate During SLAM?

[Earthman Bob]

I'm just finishing up my SLAM, and the chlorine levels are still high. I know you're supposed to wait till after the slam to adjust various levels, such as the PH. But I just tested the calcium hardness anyway since I'm going away tomorrow, and got a level of 190. I'm being told by Poolmath to add 87 lbs of calcium chloride to reach the 450 target. Reading posts here, I see that the 450 target may be higher than desired.

So first, what is a good target for a gunite pool with a SWG?

Second, is that test result accurate, given the high chlorine levels (25)? I would have waited to test it, but those staying at my house will not be able to test later. And I don't want to leave it low for that long if it's more beneficial to have it higher.

Finally, if the test is accurate, is it OK to leave at 190 for a couple of weeks?

Thanks--

 

[PoolStored]

So first, what is a good target for a gunite pool with a SWG?

250 is just fine to protect the pool. No need to chase a higher number.

Second, is that test result accurate, given the high chlorine levels (25)? I would have waited to test it, but those staying at my house will not be able to test later. And I don't want to leave it low for that long if it's more beneficial to have it higher.

If you get the expected color change to blue, your test is accurate. If you get different colotrs, add 2 drops of R-0007 before adding R-0010 to neutralize the FC. Retest.

Finally, if the test is accurate, is it OK to leave at 190 for a couple of weeks?

190 for a couple weeks is not going to destroy the pool.

 

[Earthman Bob]

Thanks for your sage advice. That makes my long pre-trip to-do list more manageable