I just checked my in-laws pool and have some interesting numbers. It is a 30 year old gunite pool with the original white, ha ha, plaster. The plaster is still smooth but is mostly stained with different shades of colors. They like the look, as it just isn't a small stain here and there, but the entire surface.
They have a new pool service since there last guy got in an accident and can no longer work. The new service has been there for 2 months, and I don't think he is trying to fix any of these numbers.
My question is; with these numbers, what most likely will go wrong with the pool?
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