So we change our filters out every 3 months. We get them from the spa store, I think the name is. They are supposed to be antibacterial. We are draining the tub bc we are going out of town. My husband took the filters out and he saw this. I am so grossed out. Have you ever seen this before? Should we awesome the pipes? We drain the hot tub regularly....ugh.....what should we do? Ugh.
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