How often would you recommend changing a one piece? With my ileo I used 2 piece hollister and changed the flange every 3 days but I now have a colostomy and am using a 1 piece coloplast and my output has been mostly porridge consistency with some watery stuff for fun oh the joys. I've used the eakin seals I had for my ileo but don't know if they'll do any good as my new stoma is nearly flush with my skin.