PÜRTREK was designed to be the perfect companion for stability as well as hydration. PÜRTREK can be completely broken down in just a few simple fast steps. 1. Remove the handle and filter by unscrewing the handle from the filter housing. 2. Remove pump housing assembly by simply unscrewing and removing lock nut. 3. Finally, remove or clean the first stage filter by sliding protective cover up pole. 4. PÜRTREK Design is serviceable and seals and gaskets are replaceable after years of use.