An internal nozzle cleaner system for a remote spray foam system for polyurethane insulation foam includes a telescopic chuck along an axis to support a tool; a motor to rotate the telescopic chuck about the axis; and a misalignment shaft coupling between the motor and the telescopic chuck to accommodate a misalignment between the axis and a nozzle of the remote spray foam system.

A method and tool for cleaning and adjusting an irrigation system sprinkler head includes a tool with tool head configured to engage an adjustment element of the sprinkler head and a curved tube having a first open end and a second open end. The tool is positioned so that the first open end of the curved tube receives a water stream exiting a nozzle of the sprinkler head and the second open end of the curved tube ejects the water stream in a direction of the adjustment element. The tool is then positioned so that the tool head engages the adjustment element and the adjustment element is turned with the tool head to adjust an operation of the sprinkler head.

A method and tool for cleaning and adjusting an irrigation system sprinkler head includes a tool with tool head configured to engage an adjustment element of the sprinkler head and a curved tube having a first open end and a second open end. The tool is positioned so that the first open end of the curved tube receives a water stream exiting a nozzle of the sprinkler head and the second open end of the curved tube ejects the water stream in a direction of the adjustment element. The tool is then positioned so that the tool head engages the adjustment element and the adjustment element is turned with the tool head to adjust an operation of the sprinkler head.

A method and tool for cleaning and adjusting an irrigation system sprinkler head includes a tool with tool head configured to engage an adjustment element of the sprinkler head and a curved tube having a first open end and a second open end. The tool is positioned so that the first open end of the curved tube receives a water stream exiting a nozzle of the sprinkler head and the second open end of the curved tube ejects the water stream in a direction of the adjustment element. The tool is then positioned so that the tool head engages the adjustment element and the adjustment element is turned with the tool head to adjust an operation of the sprinkler head.

A method and tool for cleaning and adjusting an irrigation system sprinkler head includes a tool with tool head configured to engage an adjustment element of the sprinkler head and a curved tube having a first open end and a second open end. The tool is positioned so that the first open end of the curved tube receives a water stream exiting a nozzle of the sprinkler head and the second open end of the curved tube ejects the water stream in a direction of the adjustment element. The tool is then positioned so that the tool head engages the adjustment element and the adjustment element is turned with the tool head to adjust an operation of the sprinkler head.

A shower head with descaling ability includes: a housing provided with a plurality of nozzles; and a moving plate movably received in the housing and provided with a plurality of ejection pins configured to be inserted into the plurality of nozzles, respectively. The shower head is further provided with a first water inlet and a second water inlet, the water flowing into the first water inlet flows below the moving plate and drives the moving plate to move away from the nozzles, so that the ejection pins are disengaged from the nozzles and the water then flows out from the nozzles. The water flowing into the second water inlet flows above the moving plate and presses the moving plate to move towards the nozzles, so that the ejection pins are inserted into the nozzles to eject scales out of the nozzles.