lines on vinyle siding?

I hooked up the bypass valve thingy and used it today. Awesome for us, we do a lot of concrete and downstream degreaser then shut machine down pull the injector start back up- not no more, it worked great for us. Full flow on the rinse as well for the house wash we did today.
 
Sorry, got off topic.
These guys are right- to much pressure on oxidized siding- no good.
 
The bypass ties into this thread because with it, you can use the soap nozzle to rinse and never have too much pressure to remove the oxidation. I learned my lesson with oxidation on my first driveway. I went to rinse the garage door and left zebra marks all over the place. I use my ball valve to rinse now but I would never use anything lower than a 40 tip to rinse anything with my 5.5 gpm machine.
 
Love my X-Jet
 
here is how i did it and i do this alot on house and this is the first time its done this but i down stream hw mix with a ball valve then i let it sit and wash with the (jrod down stream kit from pressure tek its the one with the big hole ) sorry not doing good at explaining and then i rinse with the ball valve on this house i did use warm water just because it was early in the morning and a lil chilly
 
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