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How to unscrew the access cover of the sewer pipe

Update:Aug 22,2023
Summary:If you want to open the inspection port cover of the sewer pipe, you can use your hands to see if it can be twisted. If it cannot be opened, you can f......
If you want to open the inspection port cover of the sewer pipe, you can use your hands to see if it can be twisted. If it cannot be opened, you can find a piece of hardwood. Set at the pass of the inspection port. Hit the block counterclockwise with a hammer. You can open the inspection port.
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