I've been dosing my new tub with Chlorine since filling it up a few weeks ago.
However, I'm constantly battling with the PH level dropping, and having to put PH increaser on an almost daily basis, which i didn't have to do with my soft tub.
Bearing in mind, i'm using chemicals which were supplied with the new tub, rather than my previous batch which i sold along with the soft tub (family member).
So i'm now wondering if it's related to the chlorine tablets I have, and am considering switching to Bromine instead.
Would this switch require a water change, or would a good dose of non chlorine shock, at 0ppm chlorine levels suffice.