I had this brush originally and eventually part of the bottom where the cap is screwed on broke so you could not out the cap back on, therfore, you couldn't fill it. I tried another version of this brush where the soap is poured through a spot halfway up the handle and hated that version because it leaked, was hard to dispense soap, and you could control the amount of soap being dispensed as much. I switched back to this version and very happy with it.