rock N roll

HI ROCK N ROLL, JUST WANTED TO THANK YOU FOR THE CLEANING OF ACTIVA. I WAS HAVING PROBLEMS WITH LEAKING, EVEN THOUGH I WASH THE ACTIVA WITH BABY SHAMPOO.
I SAW YOUR MESSAGE ABOUT USING VINEGAR AND SOAKING IT FOR 8 HOURS. I TRIED IT AND I COULDN'T BELIEVE HOW WELL IT WORKS.
HOW MANY TIMES CAN I USE VINEGAR ON THE MASK?? THANKS AGAIN
MARY