If a woman is going to the mikvah for herself and has a utensil that also has to be dipped in the mikvah, is there any halachic or public policy reason she can't take it with her?
Possible reasons I can think of:
- Since she's going to a mikvah for a chiyuv kareis, maybe she shouldn't be touching unnecessary things, analogous to מטבילין כלים בתוך כלים לתרומה אבל לא לקדש.
- I could imagine that mikvaos might make a blanket rule against dishes to avoid somebody showing up with service for 12 and delaying other people, or (thanks @MichoelR) with something that could break and lead to danger. (Obviously every mikvah can set its own policy, but is there a standard rule?)
If it is allowed, can the same bracha על הטבילה cover both the person and the utensil?