Surfactant and Detergent?

Donte55 said:
yes, and i do. Some will let it sit for a few min then rinse
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Is that for brightening/anti-fungal purposes? I noticed that where I spilled some straight 10% SH on my own dirty concrete, it left a nice bright clean spot. I cleaned a concrete patio for a customer (my first job) and it was in her backyard where it doesn't get much sun. After a few rains, it started to get some growth on it again. As an experiment, I treated it with a copper sulfate mix out of a gallon sprayer and she said after the next rain, it cleared right up.
 
LgFri said:
Is that for brightening/anti-fungal purposes? I noticed that where I spilled some straight 10% SH on my own dirty concrete, it left a nice bright clean spot. I cleaned a concrete patio for a customer (my first job) and it was in her backyard where it doesn't get much sun. After a few rains, it started to get some growth on it again. As an experiment, I treated it with a copper sulfate mix out of a gallon sprayer and she said after the next rain, it cleared right up.
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Brighten and kill remaining algae or mold so it doesn't grow back. The clean spot made by bleach is still dirty, the contaminants were just bleached out. I did a "softwash" on a driveway before and it looked clean. But artificially clean. I ran a surface cleaner over it and brown dirty water ran down, so it wasn't really clean.
 
Will a 20% downstream kill the remaining algae and brighten it up or should it be a stronger mixture
 
Ralph Q said:
Brighten and kill remaining algae or mold so it doesn't grow back. The clean spot made by bleach is still dirty, the contaminants were just bleached out. I did a "softwash" on a driveway before and it looked clean. But artificially clean. I ran a surface cleaner over it and brown dirty water ran down, so it wasn't really clean.
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I presume then, it's just left to dry. I would imagine it wouldn't take a whole lot to do even over a large area. I'll keep that in mind for future jobs. Thanks for sharing the tip.
 
LgFri said:
I presume then, it's just left to dry. I would imagine it wouldn't take a whole lot to do even over a large area. I'll keep that in mind for future jobs. Thanks for sharing the tip.
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I leave it to dry unless the customers asks to rinse it. I will also rinse it if they have kids or pets roaming around. Just got to make sure it did it's job. You would be surprised at what happens right before your eyes on a driveway you thought was pretty clean. Some driveways it makes a big difference some it is hardly noticeable, usually the well maintained ones.
 
Ive been doing this part time for years. 2 years full time now. Don't do many roofs however I too started out with Dawn, cascade and various other detergents thinking I was saving money. Once I bought a true surfactant, there are many, I prefer Roof Snot. For instance on a house wash when I Xjetted with a 5g bucket it only took a few oz of RS to make it work. Came out to about 17 cents an oz. Point is trust the old timers and get ahead of the curve your approaching.


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Walt Edwards said:
Ive been doing this part time for years. 2 years full time now. Don't do many roofs however I too started out with Dawn, cascade and various other detergents thinking I was saving money. Once I bought a true surfactant, there are many, I prefer Roof Snot. For instance on a house wash when I Xjetted with a 5g bucket it only took a few oz of RS to make it work. Came out to about 17 cents an oz. Point is trust the old timers and get ahead of the curve your approaching.


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Roof snot and snotmenade. Rinses off of windows like a dream. The best. Does not degrade SH.
 
If you had to choose between pre-treat or post treat which one would you guys do? I started post treating and it makes a huge difference. Sometimes the surface cleaner doesn't get all the algae and you hit with that post treat it gets everything off.
 
Bira83 said:
If you had to choose between pre-treat or post treat which one would you guys do? I started post treating and it makes a huge difference. Sometimes the surface cleaner doesn't get all the algae and you hit with that post treat it gets everything off.
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My decision is based doing the best job possible in the shortest amount of time. Driveways with lightly stained algae, sometimes do not need a post treatment. Pre treating is not an option.
 
Bira83 said:
What percent mixture do you use to pretreat?
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I haven't a clue. I have a 10 gpm machine. I use a 2.1 mm injector, which is for a 3-5 gpm machine. I use a gp hidraw injector which claims 20%. I have a 50 gallon sh tank, that is filled twice a week with freshly delivered bleach. I don't dilute it, just drop the line in the tank. I use roof snot as my surfactant, 32 oz's per 50 gallons Sh. I post treat and pretreat with the same mix.
 
Great video Ralph. When you post treat, do you rinse off the suds or let them stay?
Thanks.
 
Ralph Q said:
I haven't a clue. I have a 10 gpm machine. I use a 2.1 mm injector, which is for a 3-5 gpm machine. I use a gp hidraw injector which claims 20%. I have a 50 gallon sh tank, that is filled twice a week with freshly delivered bleach. I don't dilute it, just drop the line in the tank. I use roof snot as my surfactant, 32 oz's per 50 gallons Sh. I post treat and pretreat with the same mix.
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I run 8 GPM,..and with he same injector as Ralph,..I get about 1:17 through 200' of 3/8" hose,.. which makes the strength of 12.5% SH less than 1% hitting the surface.

Jeff
 
814jeffw said:
I run 8 GPM,..and with he same injector as Ralph,..I get about 1:17 through 200' of 3/8" hose,.. which makes the strength of 12.5% SH less than 1% hitting the surface.

Jeff
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But is that affective enough to do the job?


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