Pressure washing an outdoor deck is a task that any many would be proud to take part in, since there is a pretty good chance that you cherish this deck and use it to recover after having exhausted your mental and physical faculties at your workplace. The thing is, you need to approach deck cleaning practices with a pinch of salt, with the salt in question basically being caution of which you should have spades upon spades so that your deck maintains its structural and aesthetic integrity.
One thing that might give you pause while cleaning your deck with power washing Lewisville is the notion that it would get damaged if the pressure is too high or concentrated. That would make you dial the pressure back, but the truth of the situation is that this can make cleaning a bit more difficult. This is because of the fact that without enough pressure, stubborn stains would have nothing forcing them to come away from the surfaces that they cling to which is why using a good cleaning agent while cleaning your deck is something that you should prioritize.
The fact of the matter is that you only need a degreasing chemical such as sodium hydrazine for maximizing your deck cleaning potential. Grease is the toughest substance to get rid of on a deck, so any cleaner that has sodium hydrazine in it would likely work wonders for you if you give it the chance. It makes it so that low pressure becomes a truly feasible option instead of some kind of compromise, since the chemical eats away at grease and makes it flow off.