On Sunday I noticed a reddish/purpleish residue on the white trim of my pool light. Upon further investigation, I noticed this residue to be on one of my floor drains in the 6 foot section as well. Additionally, I noticed the liner to start feeling a little slimy.
For the life of me, I cannot think of anything this color that was mistakingly or purposefully placed in the pool.
Is there an algae that is is red/purple?
My numbers are:
I do not seem to be eating up unusual amounts of chlorine.
My next course of action will be to bring the chlorine up to shock levels to fight this phenmenon and break down the combined chlorine. Just curious to see if anyone knew what I about to fight.