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1. Call the local service hotline with housekeeping service or find a business card posted at the door to dredge the sewer pipe.
2. If you know a little bit of decoration, you can go to the downstairs resident and negotiate the roof in his bathroom, where the sewer pipe is blocked, there is an elbow, find a wrench to remove the elbow, in general, the grinding stone will be blocked there. Just take it out!! But you can't fix it, so don't toss around, otherwise you'll be miserable if someone leaks water.
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Rinsing with heated vinegar should be fine, it will be particularly wasteful.
How to throw the sanitary napkin inside,
Bend a hook with wire and try it outward.
You go to the supermarket and buy a spring that is professionally dredged, and just turn it around in the toilet a few times.
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How can a mussel shell be dissolved? In this case, you can only go to a professional toilet unclogging master to help you unclog it.