The caps were just JG trying to sell more plastic![]()
I'm not sure I agree with that. Let me throw a genuine use case at you.
Elbow under floorboards through a drilled hole to enable a copper pipe to be a radiator tail
If the fitting is uncapped then lifting the radiator can compress the collar and release the fitting, the cap would largely prevent this#
Regards
Tet
# for "would prevent" read "would have prevented" and subsequent flooded kitchen from above bathroom
