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Heavy duty single lever mixer - What to do?With a stiff single lever mixer, the amount of water is very difficult to dose, which is particularly annoying when only a small stream of water to flow. Then it can be made common again with some faucet grease, but it may also be necessary to replace the cartridge or the entire mixer.
Valve grease as a lubricant
In fittings, a lubricant ensures that the lever can be moved easily. If this lubricant is used up over time, it can be replaced with new one. For this purpose, there are special fittings grease in the hardware stores or in the sanitary trade, which is applied to the moving parts. For this purpose, the faucet, as described below, partially disassembled. Fats other than tap grease should under no circumstances be used for this purpose so that the water will not be contaminated.
Replacing the cartridge
If it is a somewhat older single-lever mixer, which is difficult to operate, it may be necessary to replace the cartridge. In this cartridge are two ceramic discs, which are shifted against each other and thereby regulate the inflow of cold and warm water. A defective cartridge is also often the problem when the tap drips.
- To replace the cartridge, the top cover of the single-lever mixer must be removed. This is first the
small round cover under the lever, on the itself
usually two small dots in red and blue, carefully removed.
- Behind it is found on some models, a slotted screw that can be solved with a simple screwdriver, other taps, however, an Allen key is needed. This screw is little solved, a complete unscrewing is usually not necessary. Thereafter, the cover of the faucet including the lever can be removed.
- Underneath is a ring that can usually be loosened by hand. If he sits too tightly, a pair of pliers can be used, but a cloth should be placed between the ring and the pliers, so that the ring is not scratched.
- Thereafter, the screws or the ring, the cartridge can be solved fixed, so that the cartridge can be removed and replaced with a new one. In order to avoid flooding during this work, it is important to remember to close the angle valves first or to turn off the main water tap.
It's often difficult, if not impossible, to order spare parts from the hardware store. In addition, cartridges are quite expensive, so that the exchange of the cartridge financially worthwhile only in the higher-value models from about 100 €.
Cheap faucets should therefore be completely replaced if problems occur with the cartridge. Things are different for the brand manufacturers. Although their products are usually a bit more expensive, spare parts can often be bought after years.