CH too low in vinyl pool?

[Isaac-1]

After a lot of water replacement lately I did a full set of water tests today and found that my CH is only 40, I know the general thought is CH is not important for vinyl pools, but the pool school suggested level for CH in vinyl pools is 50-300, so do I need to bump my CH up?

thanks Ike

 

[jblizzle]

Only if you have nothing better to do

 

[Isaac-1]

Do you know why Pool school lists 50 for the minimum CH for a vinyl pool?

 

[linen]

JasonLion kind of summarizes the current recommendation of 50 ppm CH minimum here, but also refers to pool that have low CH with no problems (Bama has referred to his 0 ppm CH many times).

The only other reason that I recall needed some CH for vinyl is if there is foaming issues which is rare in pools but more of an issue for hot tubs.