Trouble with Neb Cleaning (new equipments seems to cause more problems than it solves)
IMO, you need to get some pari neb cups. I've never had an issue with melting -- other than the clear plastic/green neb cup I melted on the stove just to SEE if it was durable -- and we've been boiling since day one = over 7 1/2 years.
I have used vinegar, but mainly prior to washin and boiling to get calcium deposits off the neb cups due to hard water when our old water softener was faulty.
IMO, you need to get some pari neb cups. I've never had an issue with melting -- other than the clear plastic/green neb cup I melted on the stove just to SEE if it was durable -- and we've been boiling since day one = over 7 1/2 years.
I have used vinegar, but mainly prior to washin and boiling to get calcium deposits off the neb cups due to hard water when our old water softener was faulty.