one tip, put plenty of ptf tape around tap fittings, i thought i did, all fitted, water filling up, tiny drip from tap, luckilly tap in 2 fittings, turn tap off and add more ptf tape, tighten up, all ok now. it would be a different matter if it happened at the main screw thread bit. id have had to empty tank again. plenty of ptf tape. **** when it starts to tear and mess up when putting it onto thread.