i keep em till they have a hole burnt in them and if they have a hole and i dont have anymore ill just re adjust it so the hole is on a side, not over the hole in the bowl.. (lol hole in the bowl)

if ur screen is clogged u can just rub it...
SyndicateJuggalos17 Reviewed by SyndicateJuggalos17 on . How often do you change your screens? If and when you use them.. Rating: 5