Dual motor pump assembly

A pressure washer pump assembly comprising,

• a first pump assembly and a second pump assembly, each of the first and second pump assemblies having an associated pump chamber and a pump motor operable to pressurize fluid therein, a conduit assembly for receiving a pressurized fluid flow therethrough, and first and second valve assemblies, and a controller operable to selectively control operation of the first pump assembly pump motor and the second pump assembly pump motor either independently or in tandem,
• the conduit assembly comprising a fluid inlet conduit, an intermediate conduit and a fluid outlet conduit,
• the fluid inlet conduit comprising:
• an inlet end adapted for fluid communication with a water source, providing a fluid flow at an input pressure, and
• an output end fluidically communicating with the first valve assembly, the first valve assembly including a first valve chamber and a first valve member operable with the selective activation of the first pump assembly pump motor to provide fluid communication with the intermediate conduit either directly with the inlet end, wherein the fluid flow is received in the intermediate conduit substantially at the input pressure, or when the first pump assembly pump motor is activated, via the first pump chamber, whereby the activation of the first pump assembly pump motor pressurizes the fluid flow received in the intermediate conduit to a first pressure higher than the input pressure,
• an output end of the intermediate conduit fluidically communicating with the second valve assembly,
• the second valve assembly including a second valve chamber and a second valve member operable with the selective activation of the second pump assembly motor to provide fluid communication with the fluid outlet conduit either directly, wherein the fluid flow is received in the fluid outlet conduit at substantially the same pressure as in the fluid flow in intermediate conduit, or when the second pump assembly pump motor is activated, via the second pump chamber, whereby activation of the second pump assembly pressurizes the fluid flow received in the fluid outlet conduit to a second pressure higher than the pressure of the fluid flow in the intermediate conduit.