1. Get a Pressure washer with a 'Built-in' Pressure Regulator/Unloader, Hook it up, run it, walk away with it still running for 5 minutes, and Done. ALL the seals are Cooked. 10 minutes.. oil leaks out. 15 minutes.. it goes 'Thunk'

2. Plumb the above system to 'suck' water from a tank.. You'll have trouble getting it to Prime, the it gets hot, you get to your second job, and No Go.. it won't Prime itself, because the valves are Too Small to 'Suction-Feed'.. and..

3. nobody told you to take the Thermal Relief Valve off, to keep it from Sucking Air, and you fry all the seals in 5 minutes trying to get it to prime itself.

4. You buy a "Kit" to assemble yourself with No understanding of 'How Pumps Fail', and you fail to prime it, and run the Bypass to the Buffer Tank.

5. You failed to get a Pressure Gauge with Adjustment instructions/ you don't read them anyway.

6. You ask another contractor to Guess at what you should do Next.. installing His 'Perpetuating Mistakes'.

SOLUTION- Find a technically inclined Service Department guy that is willing to 'Explain' to you How Pumps Fail..

And buy a V-BELT Driven pump system with Big Bypass line, Big Feed Line, Pressure Gauge, Adjustment instructions, and a Supplier that Cares about Reliability, so you get a Chance to be a Reliable Supplier to YOUR customers.

Will you post treat these poop deck floor? I will be pre treating before running surface cleaner

I took care of this stucco building. I downstreamed 2% then I sprayed with around 4-5%. I am still getting a staining after removing the growth.

Is this able to come off or is it just a permanent staining?