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At express car washes, spray guns are primarily used in prep stations at the beginning of the tunnel. It’s important to have high quality spray guns that offer a powerful stream of water that effectively blasts dirt and grime. The faster your employees can prep cars, the more cars per hour you can send through your tunnel. Choose spray guns with a right pressure rating (PSI) and flow rate (GPM) that match the pump system you’re using at your prep station to get the best performance. Standard non-weep spray guns are sufficient for most applications, but weep guns are available if you’re located in a cold climate where you must avoid freezing in your line.
Traditionally used in colder climates where freezing conditions occur, weep guns are used in any environment where the operator wishes for water to continually flow through their system and guns in low volume. This protects from freezing and the damage that occurs from it, and helps alleviate other pressure buildup in the system.
Non-weep guns are typically used in warmer climate areas where line freeze ups do not take place. This style gun is also used in pressure washing applications where you do not want water to continue to flow when the trigger is released.
Read our blog about weep guns to learn more and figure out if they're right for your application!