Black dots on door seal? 

A new phenomenon has appeared in recent years....black dots and marks on door seals. other than being unsightly the pose little threat. we believe they have appeared in recent years due to the popularity of low temp washes!! Its bacteria which are not being killed due to the low temp wash! simply do a boil wash once every couple of months and it will stop the spread, even better start this habit now to prevent the dots from starting.