I’m using a 55 gal rain barrel with a 1 inch ball valve and plan on reducing to Clear Vinyl Tubing, 3/4 inch to a 3/4 strainer then to more tubing then finally to pressure washer.
Long story short am I limiting my flow to my washer by reducing to 3/4 hose and not just using 1 inch tubing with a 3/4 reducer to the pressure washer. Or would will I be fine and not effect it much with the change in diameter and get enough water regardless of 1 inch or 3/4.
Depends on what size pressure washer. 3/4” is probably good up to 4gpm or so. But most stick with 1” throughout to be on the safe side. Plus, you’re future-proofing your setup, in case you decide to upgrade to a larger machine. You won’t need to redo all the plumbing
Also, stick with crush proof suction hose (sometimes called spa hose). The vinyl stuff can collapse in hot weather, even if it’s “reinforced”