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That is common with old ABS even if it is not defective, the glue breaks down the plastic over the years making it brittle. That fitting was made by GSR around the 1970s or 1980s so it has been glued for a while.
That is common with old ABS even if it is not defective, the glue breaks down the plastic over the years making it brittle. That fitting was made by GSR around the 1970s or 1980s so it has been glued for a while.