Even when raising the temperature setting of the water heater, the temperature of the hot water from the mixing faucet did not rise. Due to the small number of components, the malfunction of the thermo part was almost clear, but it was not easy to remove this part from a faucet used for 17 years. In the small instruction included in the package there are no tips on nice work and if you call the maker with too much firmness, "Please do it yourself and pull it out anyway" and that the top of the part There was a hook for pulling out, but somehow it pulled out while holding the uneasiness that it would be in a desperate situation if it broke off. There were three O rings and the reason that rust chewed in the water intake part was the cause of difficulty in coming out, but I think that I could work more smoothly if there was a sentence that there is no choice but to pull out even in such a situation. The goods arrived at 15 o'clock and arrived at 9 o'clock the next morning. As you expected it is just a monoteraw.