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How to disassemble and repair the shower faucet？
1. First close the main valve, then turn the faucet handle with an 8 mm red and blue sign, then use a screwdriver to tighten it counterclockwise, then unscrew the handle, use a wrench to unscrew the valve, then use a wrench to unscrew the top divider cover and remove the ceramic spool inside.
2. First, close the main water valve. You can insert the screwdriver under the faucet handle, from left to right, and pry it open one by one.
3. First close the main valve, then open the blue cover on the right handle, use a cross screwdriver to open the internal screw, remove the handle to expose the spool, then use a removable wrench to unscrew it.