Thank you for catching that Dr Spa.
Thanks for your suggestions Dr. Spa. This metal remover that you are suggesting me to buy, can I find that with the pool chemical section? As for using a pre-filter at time of filling, I'm not sure where to put that since my unit only has one compartment for 1 filter?? The spa is already filled, is there any way of fixing the problem now or should I empty it and start from scratch?
Mr. Hillbilly Hot Tub - where do I find your instructions on what to do BEFORE adding an oxidizer?