try 4 way or more way splitter ? or with a timer?

https://www.lowes.com/pd/Melnor-4-Output-Port-Digital-Hose-End-Timer/1000551167?cm_mmc=shp-_-c-_-prd-_-sol-_-ggl-_-LIA_SOL_000_Seasonal-Outdoor-Living_Catch-All-_-1000551167-_-local-_-0-_-0&gclid=CjwKCAjw9-6oBhBaEiwAHv1QvPuNjqPQhPTHAZOG3kWU6qE10HNH-WpzfU3YnMHJdhAe_EfII35B9BoCiwsQAvD_BwE&gclsrc=aw.ds

 

https://www.amazon.com/Riemex-Garden-Splitter-Metal-Connector/dp/B07X56LDV4/ref=asc_df_B07X56LDV4/?tag=hyprod-20&linkCode=df0&hvadid=385179065226&hvpos=&hvnetw=g&hvrand=6818940581416667019&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029578&hvtargid=pla-820548383942&psc=1&tag=&ref=&adgrpid=83905924532&hvpone=&hvptwo=&hvadid=385179065226&hvpos=&hvnetw=g&hvrand=6818940581416667019&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9029578&hvtargid=pla-820548383942

You did not specify problem well enough. current water pressure? how big area do you need to cover?.... why do you need pressure washer?