Will my SPX Pressure Washer accessory work with the on-board soap bottle on my unit? Yes! Your SPX Pressure Washer accessory is compatible with the on-board soap/detergent bottle, so you can easily apply soap or detergent to your surfaces. Related articles How do I connect my Power Scrubbing Broom model SPX-PWB1 to my Sun Joe Pressure Washer? Why is my SPX-FC34 not dispensing detergent? SPX2599-MAX Electric Pressure Washer Do you need to connect the hose every time you use it or does it stay connected when you unwind it from the reel? Is the SPX-ACS-MAX accessory compatible with my SPX Series Pressure Washer?