First look at the appearance, fine quality water processing, good surface finish, and do not mirror distortion. Secondly, hand turning the faucet handle, faucet and switch between no transition clearance, off easily without resistance and not slip. Again is check each parts, especially the main parts of the assembly is close, good faucet body and handle all the brass refined, more self Shen, a dignified sense, the last is to mark recognition, regular products are manufacturers of brand identity, and some non regular products or some quality products often only paste some paper labels, even without any mark, buy to pay attention.

First look at the shower; the tube and the surface of the coating is smooth. This is because in bathrooms and other damp environment, shower surface generally after the treatment of chrome, but also is a chrome plated, process difference is big. According to the businessmen said, tube body with copper material, the surface should be after grinding, polishing and dust removal, nickel, chrome and other treatment processes to ensure in use will not change the UFA black and blistering off, generally speaking, from the surface of the shower, the naked eye can see more light and smooth, plating process treatment better.
Second; hand grip, determine the pros and cons of material. With Chrome Shower and some undesirable businessman will cast iron pipes posing as a full brass, a simple criterion is, with hand holding the tube body, 2, 3 seconds after release, if the tube body mist lingering, it is likely is cast iron pipe, if left hand tube body, almost no change, basic can determine is brass. In addition, the tube body of the copper percussion sound crisp, cast iron pipe with a low voice muffled, knock, but also the criterion of shower pipe material.
Third; as the saying goes, the layman to watch, experts see road. Shower quality OK, see not see where the most important, so be sure to ask businesses sprinkler switch valve core material and the service life of the. The shower switch valve is made through special process is used to very high hardness of the ceramics, the service life to achieve.

Occurs mainly in the use of gas water heater users, the main reason is high pressure, hot water pipe out of the water although rarely, but because of the pressure is still high enough to open the top of water heater pressure valve, so that water heater ignition, work, so handle in the "cold water" position will have hot water.