HOW IT WORKS

REMOVING Many original cartridges are over-tightened. This means removing them can sometimes lead to loosening of the tap’s supply pipework. Always thoroughly check the supply pipework once you have changed cartridges. Only ever use either a ring spanner or a deep socket to remove a cartridge. They come out so much more easily, cleanly and with rarely a problem. Some TapMedic users remove cartridges using a deep socket on an electric driver. We completely understand why. However, when doing so it is your personal responsibility to carry out a full appraisal of the potential risks each and every time. An alternative technique to the driver, is to use appropriately sized, and protected so you don’t damage the tap, steel or aluminium pipework slid over the tap spout to hold it steady whilst you remove the cartridge. Regardless of how you remove cartridges, all supply pipework must be checked thoroughly for leaks once the cartridge is replaced. SEAT DEPTH The image shows the seat depth in a tap and the top face of the tap against which the cartridge shoulder sits. Your cartridge must be 0.5mm (1.omm absolute MAX) longer than this to allow it to seal correctly. Adjusting a cartridge’s seat depth is simple. Choose an appropriate combination of end seals and/or body extension. The objective is to match the faulty cartridge’s seat depth or exceed the faulty cartridge’s seat depth by the minimum possible. It must never exceed 1mm. The seat depth of the new cartridge can never be less than the one removed – otherwise it will leak. Not always immediately, but almost certainly when system pressures rise – probably overnight when pressures rise When replacing a traditional multi-turn valve with a TapMedic cartridge, e.g. for someone with Arthritis, you will need to measure the original seat depth. The driver has a small silicone ring on it. Use this ring (slide it) to mark the seat depth you need to match. See the video for a clearer explanation. TapMedic cartridges are designed to cope with being no more than 1mm taller. INSTALLING TapMedic cartridges must ONLY be installed using either a socket or a ring spanner. Adjustable wrenches have the potential to distort the hex and cause problems/binding. These issues are not covered by warranty. The shroud adapter, where needed, must be fitted after the cartridge has been installed & fully tested. The cartridge must be tightened thus: do it up so brass touches brass turn another HALF FLAT to lock – no more is necessary. See image. CHECKING TapMedic insist the cartridge must be checked at least twice for ‘feel’ before it is considered complete. Too ‘tight’ to be turned by fingers alone using a 35mm shaft, potentially means early wear/failure. Too ‘loose’ means a potential for leakage. Once two or three are fitted, you become familiar with the correct ‘feel’. This is a core reason we consider TapMedic suitable for professionals only OPENING DIRECTION The opening direction of TapMedic cartridges are easily changed; simply swap the grub screws. The long grub screw is the one that decides the opening direction. Two must be fitted at all times. If you & your customer decide you need 360 degree opening/closing, then you simply fit two short grub screws instead of one short and one long.