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    Is it safe to use tarp over hard spa cover?

    I have an outdoor, in ground spa that currently has only a fitted hard cover. With all the leave falling this month, I was thinking of putting a large tarp over it and weighing it down on the sides to prevent the leaves/pine needles from getting into the water. Is that safe? I was thinking of...
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    Dichlor versus stabilizer

    Hi, I have been following the How do I use Chlorine in my Spa (or pool) thread to bring up the chemical levels in my spa. One thing I was not clear on was on the sanitation section. Why do they recommend the dichlor then bleach method instead of just adding stabilizer (for example this which is...
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    Using Ahh-Some: Is it safe to run water pump without filter cartridge?

    I am planning to clean our in ground hot tub with Ahh-Some and the instructions say to place the filter cartridges inside the hot tub for cleaning. We have a Pentair Clean & Clear cartridge system for filteration. Is it safe to run the pump through the filter without the cartridge inside? I am...
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    How do I replace water in an in-ground hottub

    Hi there! We have an in-ground hot tub whose water turned green. Unfortunately, I ended up adding a bunch of dichlor shock to increase the FC level. Now, my CYA level is out of the charts (according to the FAS-DPD test). Approx 200ppm is my estimate based on retesting with diluted with tap...