Bentnose
Well-Known Member
I found the o ring would be shagged out when the bottle is taken off, in all cases the o ring has returned back to its normal size. Their size seems to be dependant on temperature or something, after a good wash and reassemble a few days later they've always been back to normal. Strangely I was given bottles were the o ring was shagged out, after a full dismantle of the head and wash in hot water, the o ring had returned to normal size by the next day. I've got 16 bottles and no issues so far.