Thanx Dale and Andy,
tried the aluminum house today..did a test area in back, but upon closer look the siding is really showing through the white paint and it is pitted...for the heck of it I gave it a shot under a porch with the regular house wash mix...Nothing changed, didnt remove paint, didnt clean it, looked the same.....changed tips twice, 1000 psi up to 2000 psi...NOTHING......got close and it started to remove some paint and thats when I gave up.....is your dwell time the same with aluminum as with vinyl ?
The front of the house is light colored brick...hit that with the house wash mix too...removed the loose dirt, (I could see it running off) but other than that, no real change....front gutter looked great just from the house wash.....
in front off the house there is a stone wall which is capped with a cement slab, it was black with mildew and lots of mold around the morter....Since I had about 3 gallons of house wash already mixed, I dumped it into my pump up and sprayed the stone and cement top...(thinking the pool chlorine would eat away at it).....came out really nice..
around here there a lot of brick houses (A LOT), would my house mix be good enough or is there a better way? second, there are cement window ledges on all these homes as well as cement steps, would you think straight chlorine with a splash of cleaner or degreaser in a pump up is the way to go??
Again, thanx for replying...(wow, this is a pretty long post, ooops) Mike H