If you have space around the nuts you can't beat the largest one of these you have in one hand
And a 12" one of these in the other
Sometimes you have to take the whole lot off to outside and then after a little time with one of these
They undo with the greatest of ease.
If has to be done in situ and all else fails then the nuts are designed to be renewed without removal of union, so all good plumbers have one of these
if fitted with the highest quality blade available to man it is a formidable tool. With the original blade wouldn't cut plastic properly.
But that wrap over nut is a complete pile of pooh a waste of weight in the van.
And a 12" one of these in the other
Sometimes you have to take the whole lot off to outside and then after a little time with one of these
They undo with the greatest of ease.
If has to be done in situ and all else fails then the nuts are designed to be renewed without removal of union, so all good plumbers have one of these
But that wrap over nut is a complete pile of pooh a waste of weight in the van.