04-27-2012, 03:00 AM
I think you need one of these Push-Fittings Disconnect Clips. It slips over the plastic flange so you can push it back and release the fitting. I've also improvised with a loose pair of channel locks on 3/4" sharkbite fittings.
http://www.google.com/products/catalog?oe=utf-8&q=push+fitting+plumbing&um=1&ie=UTF-8&tbm=shop&cid=3760278932248912627&sa=X&ei=LAuaT8PeA-eZ6AGqx4X0Dg&ved=0CJUBEPMCMAg
At Home Despot they call it a Pex Demount http://www.homedepot.com/webapp/wcs/stor...=100638161&storeId=10051&langId=-1&catalogId=10053&ci_src=14110944&ci_sku=100638161&cm_mmc=shopping-_-googlebase-_-D26X-_-100638161
http://www.google.com/products/catalog?oe=utf-8&q=push+fitting+plumbing&um=1&ie=UTF-8&tbm=shop&cid=3760278932248912627&sa=X&ei=LAuaT8PeA-eZ6AGqx4X0Dg&ved=0CJUBEPMCMAg
At Home Despot they call it a Pex Demount http://www.homedepot.com/webapp/wcs/stor...=100638161&storeId=10051&langId=-1&catalogId=10053&ci_src=14110944&ci_sku=100638161&cm_mmc=shopping-_-googlebase-_-D26X-_-100638161