We put in a new stand up shower and it doesn't drain like it should and we get a sewer smell through out our house. When the smell gets in there I have to run water through the drains and it helps some. Please help!

we put in a new stand up shower and it doesn't drain like it should
Did you install a trap?" Did you vent the shower? Was this a replacement or a remodel? Would this be a custom tile nor a manufactured base and enclosure shower?As you can see you've left a lot of questions unanswered. I'll wait on your reply. Regards, Tom