Is she a puppy? If she all of a sudden started having accidents in the house, it may be because you guys are slacking on the potty training, there is something medical or behavioral (submissive urination) going on.
You need to go back to potty training 101. Take her out as soon as she wakes up, as soon as she's done eating, as soon as she's done playing. Anytime her activity changes, take her out and praise her for pottying outside. Don't walk around with her. Pick one place where you want her to go and stand there. Like a statue.
I wouldn't use a bell because my dogs would try to use it when they just want to go outside and play which would annoy me to no end.
You need to go back to potty training 101. Take her out as soon as she wakes up, as soon as she's done eating, as soon as she's done playing. Anytime her activity changes, take her out and praise her for pottying outside. Don't walk around with her. Pick one place where you want her to go and stand there. Like a statue.
I wouldn't use a bell because my dogs would try to use it when they just want to go outside and play which would annoy me to no end.