First time posting, so thanks in advance for any help.
We opened the pool this year to what looked like algae on the surfaces of the vinyl, but it wouldn't brush off. Did some reading here and it seems like it is metal stains. We tested this stain by rubbing it with a lemon and an orange and it did lighten the stains somewhat. The pool store recommended a citrus stain eliminator made by Spec Chem. So now we're letting the chlorine levels drop to the recommended 0.0 to 0.1.
My questions is: now what? My head is spinning from the different advice. Sequester agents, how to bring up the chlorine levels, etc, etc. Can anyone provide an easily understood step by step on how to deal with this whole process? Again, thanks in advance!