Yes, absolutely. Child proof doors are a must in this house. I'd never get my kids out of the sump if it was accessible! They'd think it was their own indoor saltwater pool, especially the baby, lol. Plus I can't risk that closed loop plumbing getting yanked on. Heck until last night, the baby spent half his free time everyday poking around the sump seeing what he could mess with. At least he's interested in a fun hobby, right!?