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Wow, these bladders are news to me, too! When did they start using these? I've not seen anything like that in our basement storage area lines.
So, if the tank gets over full, instead of backing up into the shower or kitchen sink, as appropriate, it builds pressure in the tank until the tank bursts, right? Wonderful. Whose idea was that and does he still work for Keystone? Must be the same guy who suggested the washer drain into the black tank to help keep it clean. At least I'd bet that was the thinking.
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