Pressure washing is effective because it can get rid of the top layer of wood that the wood finish is connected to. This can be a problem because if you aren’t careful you can destroy the wood on your patio. You won’t need a pressure washer that has more than fifteen hundred PSI. You want to move the pressure washer along the grain of the wood so that you don’t cause streaks by going cross grain.

Key Takeaways:

  • If you don’t take care with pressure washing you can end up removing layers from the wood itself.
  • Try to keep your pressure washer in line with the grain of wood to avoid streaks.
  • You don’t need a pressure washer to have more than 1500 PSI of pressure.

“Even if you have a sprayer that develops only moderate pressure and a tip that splays the pattern to 30 degrees, you can still gouge your deck by holding the tip too close to the wood.”

Read more: https://homeguides.sfgate.com/pressure-washing-remove-old-deck-finish-81191.html