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There are several independent variables to manage in a swimming pool or hot tub: pH balance halogen balance calcium hardness total dissolved solids Nearly everyone is aware of pH balance, but what most people don't seem to understand is that pH can swing wildly unless total alkalinity is increased sufficiently to provide an "inertial buffer" with total ...


Get ready to buy some chemicals and clean your filter. You need a chelating agent (for pools often sold as "Metal Free") to bind the metals. Adding a clarifier will help coagulate that plus the other hazy junk so they form particles large enough to get stuck in your filter.


You mentioned Goof-Off... At the risk of sounding like this is a response to a product recommendation, I'll say that this product works reasonably well. You'll still have to clean its residue up, of course, but the product on its own does what it advertises.


I applied Cif and left it for a quarter of hour, then wiped it off--it removed almost all the residue.

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