Troubleshooting Avent bottles?

I'm a bit stumped on this one. I've been using the same bottles since the gremlins were about 6 weeks old and they've always been fine. About two weeks ago I replaced all their sz3 teats coz they were scummy with sz4's. Ever since I have had problems with the bottles leaking around the teat, sometimes to the point where bubs ends up drowning in milk. It seems to help if I tighten the lid as tight as I possibly can but that slows the flow of milk right down.

Has anybody else had this problem? I'm really beat as to what's causing it. Do I need to replace the bottles as well? I always thought bottles lasted forever it was just teats that had to be replaced?

I seem to have the same problem? Except it is with my brand new baby teats I bought to try out on charly.

yep must be faulty teats. If you have time, (yeah right i know). Take the bottle and teats down to the baby factory or wherever you got them and explain the problem. Maybe you could tell them over the phone. Maybe the teats are made for a newer version of the bottle?

I had the same problem, and still do sometimes. It is to do with how tight the teats are placed on the bottle. My girlfriend pointed it out as she had the same prob about 8 years ago!
I still get it wrong sometimes and Tyrell ends up wearing the bottle rather than drinking it!

Yup...even tho we dont use them much ..just for water - they leak heaps! You would think they shouldnt as they cost a bomb.

Yeah we sometimes have that problem too. Although they start leaking as we are shaking them to mix the formula so it generally doesn't end up soaking bubs! I find taking it apart and putting the teats back in again fixes it? Funnily enough I think it started when we changed to the number 4's aswell

We had the same problem wth avent bottles when I went up to size 4 teats mainly when shaking to mix formula but also soaking Piper when she was feeding and found sometimes just re-screwing the lid back on worked but not all the time so I have started trying some cheaper tommee tippee bottles and have had no problems with leaking so far

We had the same problem with Sz3 teats. The sz4's seem to be fine. Hubby seemed to have a huge problem with it, and I never did .. until one day.

Anyway, as someone mentioned above (and in my experience) it seems to be when you insert the teat into the 'lid' ... sometimes they don't seem to 'seal' properly. If it spouted everywhere, I'd undo the whole thing, give the teat a harder pull and then re-screw. Seemed to work.

There gremlins certainly don't have a suck problem - they're little limpets, they cling on for dear life . But could well be user-error (ie. me!)