I've been using this Krud Kutter House and Siding cleaner for years. I make sure whoever has been hired to pressure wash my house uses this because this is a biodegradeable cleaner. With all of the plants I have (delicate ferns and evergreens), I cant risk using any harsh chemicals and bleach is just out of the question. None of my plants, the grass, or even all of the toads and lizards around here are harmed with this cleaner. I have vinyl siding and this cleans off moss, mildew, cobwebs, bird poop, whatever is on your house. I bought a home pressure washing wand this year and tried it out using this cleaner. I cleaned off all of my outdoor furniture and decorations in no time flat. I also decided to try it on the green yuck on the patio and sidewalk. I poured it on, spread it around with a push broom, and let it soak in for 10 minutes. I used the wand to rinse and the gunk just peeled off the concrete. It saved me money not having to pay for someone to professionally wash it and it looks bright and clean.
Recommend this product if you're look for a gentle, yet effective cleaner.

Will never buy anything else to clean my house in

Like the no bleach and I control the dilution rate. Did a good job on vinyl siding.

I tried, a few weeks ago, "Scotts outdoor cleaner" on the North (worst) side of my Home, with little to no results. I used a 4000P.S.I 3.0 GPM power washer an X-JET low pressure soap Nozzle, and Brush, on an extension, while keeping the product saturated on the Siding. My Gutters stayed filthy, along with a lot of embedded dirt in the siding, making me wonder if it was just "too far gone" to clean. Then I thought, due to the reviews, I would give Krud Kutter HS01 a shot. OMG! Using the EXACT same method as before, I watched in amazement as the dirt just started rolling down the siding... even from the Gutters! I also just used the X-JET to rinse it all off with low pressure. That side of my house is about 36ft long walk out Ranch, so, basically 2 stories. I re-applied Krud Kutter 3 times, only to keep it "wet" for scrubbing... NOT to re-clean, but to be able to brush it while still wet, and it only used 1 gallon of product feeding through the pressure washer. I purchased 4 Gallons, and am sure it will do the rest of the House with ease. Note... it will dry fairly fast on the siding, so keep it wet at all times. LOW pressure only!

This is awesome. I am a 54 year old and was not looking forward to trying to clean the vinyl siding on my house. I ordered this hoping that it would make my job easier. It truly did. I started on the side of my house that was quite green from the algae. I wasn't looking forward to climbing up on a ladder and scrubbing the side of my house, so I sprayed it with this cleaner, waited a few minutes and then sprayed it with my pressure washer. The green algae came right off!!! I was actually excited to clean the rest of it. This is great stuff! My house is clean. My plants and grass are fine. And I didn't have to worry about any residue being harmful to my pets when I let them outside. I can't believe I'm actually excited about cleaning my siding.