Part III
I put a plug in the central hole in the bit he cut out with a valve ring between it and a bit of wood and then screwed the whole shabang to the ceiling so that the bit of filler piece was about 3mm low and then filled the gaps with expanding foam.
Part III
I put a plug in the central hole in the bit he cut out with a valve ring between it and a bit of wood and then screwed the whole shabang to the ceiling so that the bit of filler piece was about 3mm low and then filled the gaps with expanding foam.
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