We are not permited to leave a dead end in a line, and are made to remove any. Get him to take it out. Water can “die” in there, even more since it is the sun, and pollute the potable water.
All advice is given with-out seeing the job, and hence all advice MUST be taken as advice with limited knowledge on the exact situation. NO responsibility can or will be taken. And yes, I am a licensed Plumber and Drainer with my own business in Brisbane Australia.
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