calcium hardness up

[Diver]

i have a vinyl pool and 2 bottles of calcium hardness up left over from previous owner. it seems like there was a bit used from one bottle.

would i ever have any use for these or will they just take space in my shed? my logic says i should throw/give it away.

 

[JasonLion]

There is never any need to raise CH in a vinyl liner pool.

 

[Diver]

There is never any need to raise CH in a vinyl liner pool.

makes me wonder why did the prev owner ever use it? thanks for confirming my thoughts.

 

[bk406]

makes me wonder why did the prev owner ever use it? thanks for confirming my thoughts.

The pool store told him to.

 

[Diver]

makes me wonder why did the prev owner ever use it? thanks for confirming my thoughts.

The pool store told him to.

probably. he also had "premium" brand of chemicals in the shed