Keeping CH at only 200 with CSI balanced ok?

[SoDel]

I guess thread title says it all. Due to pool leak (now fixed), CH gradually fell to 200 (no hard tapwater here, thankfully). Other #’s are TA 60, pH 8.0, CYA 60, and temps in the low 80’s, gives CSI of -0.21 and pH ceiling of 8. I’d like to just leave things there until weather turns cold. Seems should be ok but is there something more to be thinking about? The Poolmath recommendation is CH 250 minimum and I hesitate to deviate from that without asking — is there an important reason for that or is it just a general best practices type recommendation?

 

[mknauss]

You can dance on the head of that pin, but you will likely need to add calcium before winter as the CSI goes even more negative with colder water temperatures.

 

[SoDel]

Roger that. I’m not so good at dancing. Will add some calcium. Thank you!