I know this doesn't answer your question, but I would suggesting skipping the brick cleaning and cover with FRP or one of the other similar typoe materials.
I've been using Kleen-Wall by brushing it on instead of spraying - it works much better because I can apply it stronger and it doesn't atomize or splatter so it's safer.
If it's just soap scum and calcium, muriatic acid will usually work, but it's nasty stuff.
You can get it from Kleen-rite. I applied it with a sprayer and IMO much stronger stuff than kleen-wall. Protective equipment is a must with any wall cleaner.
I believe you can still get muriatic acid at a pool supply store. It has been a long tie since I bought any. Call and make sure first.Where can you purchas Muriatic Acid?
The bays have not been clean in years... I will try the Kleen Wall brushing it on.
How long did you let it stay on before you sprayed it off?
Is the high presure wash in the bay good enough to wash off?
Thanks
Home Depot, pool supplies section. It was about $3/gallon last time I got some.Kessler757 said:Where can you purchas Muriatic Acid?
I do about 5' at a time and keep it wet. It takes a few minutes to work. I mix it 2:1, I use an old foam brush to apply it and I keep it wet with the brush until the stuff starts coming off. Yes, the high-pressure from the bay is plenty to clean it off. I clean the wall with high-pressure soap and let it dry first since there's usually wax on them that hinders the cleaner.Kessler757 said:The bays have not been clean in years... I will try the Kleen Wall brushing it on.
How long did you let it stay on before you sprayed it off?
I have bought most thru a local outfit called "Insulated Panel"Earl,
Where did you get your FRP and would you get it from again?
Thanks