I know its an ago old question, which sort of drier to use.
In the blue corner the Flared type, easy and quick to remove & fit a new one but can be prone to leaks.
In the red corner the solder type, pain in the arse to remove & refit, more leak tight but requires element to be open to atmophere longer before sealed & poss is solder getting in the system.

My question is this:- Obviously there my be a saturation point of a drier & if you have to take time to solder in a new one surely this increases the time it can collect moisture & will take longer to vac out properly.

I know all NEW units now have to come with Solder connections but has anyone looked into the time it takes to solder in a new one ect !!!!!!.

For the record, personaly i prefer the flare type fittings especailly if they have the Long flare nuts put on them, i don't normally find they lead because they are supported better.

Any Views

Raymond