[TowerTalk] Cleaning mildew off tower concrete

[Lee Buller]

Try Fantastic or 409 or Simple Green.  Works in the tub and shower too.  Makes your tower smell fresh as a spring day. Believe it or not, those types of cleaners can do a whole lot outside on many surfaces.  I use 409 on motor oil grease spots on the concrete.  I just put it on...let it set for a few minutes...and then hose off the spot.  If 409 can gut grease and grime it can cut the mildew.  You might have to scrub a little as well. Lee - K0WAI think I will go clean the shower now....

EUGENE SMAR <spelunk.sueno at prodigy.net> wrote:TT:

As part of my Trylon tower maintenance this year I want to scrub the
concrete base to remove the green mildew, or whatever it is, that has
accumulated on the surface of the concrete. FYI, the tower is in the middle
of a group of trees in my back yard and the concrete base is in the shade
for most of the day. The mildrew is growing in an area immediately below
the tower steel. That is, it doesn't appear near the edge of the concrete
base nor on the concrete in the center of the tower. I'm guessing it's
carried off the tower in some kind of runoff.

My initial thought was to scrub the mildew with a mild solution of
household bleach, maybe diluted 1:1 with water. My main concern, however,
is for the tower material itself. It's not galvanized, but, as Trylon call
it, a passivated G-90 coat pregalvanized sheet steel material. I don't want
to damage the G-90 (?) coating with the chlorine bleach.

Does anyone have any advice on how to clean the mildew while still
protecting the steel of my tower? Many thanks.

73 de
Gene Smar AD3F
P.S. The mildew looks bad from the back deck, only thirty feet away. If it
were out of sight (on the lower forty) I wouldn't care as much.


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