View Full Version : Leaking Insulated Platex Cups

11-12-2003, 01:34 AM
I was reading some earlier posts regarding this problem. I had a similar problem with a Gerber non-spill proof sippy. My husband (engineer) says it is caused by overtightening the lid. I called Gerber and she had me try putting the lid in boiling water for like 30 seconds and it worked! No more leaks. Maybe that will work for your Playtex sippies. I have the insulated ones from Costco and haven't had a problem. But, I don't crank down on them to tighten. I do tip it and check that it doesn't spill before giving it to my dd.

Hope it helps!