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    Iron contamination - about to drain & refill, what about the sand in my filter ?

    Somehow a steel rod spent the winter in my pool :confused:. Pool is algae free (OCLT test) and still very green (can't see the bottom). I've confirmed the presence of iron with asorbic acid on the brown stains on my white steps but I can't see how much of the rest of the pool has stains. Safe...
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    Old Polaris 180, dead booster. Replace pump or get a 360 ?

    I have an old Polaris 180, it works fine (rebuilt it last year) and I've been very happy with the performance but now the booster pump is dead (motor bearings). I've recently adopted a more 'energy efficient' approach and I'm thinking about upgrading? to a 360 rather than replacing the booster...