You need to spend less time on YouTube adopting the views of others and form an opinion of your own. The majority of your videos are from the same guy who obviously has an issue with Worcester.If you are going to use plastic, why use nasty Toys R Us plastic that literally crumbles in your hands like sand? Surely there is a tougher plastic that is more resilient to heat, pressure and chemicals?
Different engineers complain that Worcester Bosch plastic flow turbine adaptor disintegrates way too easily - see it in action here:
Watch from 2.18 below
Watch from 2.19 below
Watch from 0.32 below
Surely you can't defend this choice of plastic? My boiler of choice? I would recommend Worcester Bosch the moment the mile long list of schoolboy errors have been dealt with.
The new Worcester's still have plastic manifolds and plastic flow turbine adapters....