Trainerboy
New member
Ok,
This is only a small test area at the Oklahoma Ordinance Works Authority main office. This is the headquarters for one of the largest industrial parks in the US. They have have this problem with the brick for almost 20 years and are sick of it. They've had it cleaned up in the past but it just comes back with a vengeance every time. I was really hoping to make a big impact on this because it will lead to VERY big things if I can become their go-to guy for pressure washing. One of these is a gigantic expo building that needs some TLC.
I tried this with my F9 Efflo at an 8:1 applying with a pump up sprayer (not DS'd) and scrubbed until the bristles nearly came off the deck brush I was using. This yielded maybe a 5% improvement. I switched to straight F9 with pump up sprayer and still scrubbing my b$ll$ off. I steadily increased my dwell time because each application was only making a VERY tiny dent in the efflorescence.
Long story short (and I'm not exaggerating in the slightest) it took probably 30+ applications of straight F9 with 5-10 minutes of dwell time each JUST to get the results you see in the pictures. The efflo on the taller wall actually came off with only three applications and some light scrubbing. The short little test section on the shorter wall is the problem child I need guidance on. The only difference between the two is sun exposure. the taller section is covered but the shorter wall is fully exposed to the sun.
I used an entire gallon of F9 Efllo on these two little test areas. This is a very large building and the whole place is covered in efflo. If I can't figure something out I'm going to need to buy a tanker full of F9 and about 100 deck brushes to get the job done. Using that entire gallon still didn't get 100% of the efflo off.
The good news is they were still happy with the results of the test areas and are hiring me to do the whole building. The bad news is, if I can't figure out what key element I'm missing to get this done efficiently I'm going to have to turn it down. This means I can kiss all the other projects goodbye as well.
HELP PLEASE!!!!
What am I missing? This cannot be normal results from F9.
This is only a small test area at the Oklahoma Ordinance Works Authority main office. This is the headquarters for one of the largest industrial parks in the US. They have have this problem with the brick for almost 20 years and are sick of it. They've had it cleaned up in the past but it just comes back with a vengeance every time. I was really hoping to make a big impact on this because it will lead to VERY big things if I can become their go-to guy for pressure washing. One of these is a gigantic expo building that needs some TLC.
I tried this with my F9 Efflo at an 8:1 applying with a pump up sprayer (not DS'd) and scrubbed until the bristles nearly came off the deck brush I was using. This yielded maybe a 5% improvement. I switched to straight F9 with pump up sprayer and still scrubbing my b$ll$ off. I steadily increased my dwell time because each application was only making a VERY tiny dent in the efflorescence.
Long story short (and I'm not exaggerating in the slightest) it took probably 30+ applications of straight F9 with 5-10 minutes of dwell time each JUST to get the results you see in the pictures. The efflo on the taller wall actually came off with only three applications and some light scrubbing. The short little test section on the shorter wall is the problem child I need guidance on. The only difference between the two is sun exposure. the taller section is covered but the shorter wall is fully exposed to the sun.
I used an entire gallon of F9 Efllo on these two little test areas. This is a very large building and the whole place is covered in efflo. If I can't figure something out I'm going to need to buy a tanker full of F9 and about 100 deck brushes to get the job done. Using that entire gallon still didn't get 100% of the efflo off.
The good news is they were still happy with the results of the test areas and are hiring me to do the whole building. The bad news is, if I can't figure out what key element I'm missing to get this done efficiently I'm going to have to turn it down. This means I can kiss all the other projects goodbye as well.
HELP PLEASE!!!!
What am I missing? This cannot be normal results from F9.
