"Prof Wonmug" wrote in message
...
On Thu, 20 May 2010 14:20:00 -0400, "Colbyt"
wrote:


"Prof Wonmug" wrote in message
. ..
On Wed, 19 May 2010 08:12:15 -0700, Prof Wonmug wrote:


I'm going to try some bleach and some standard cleaners on some small
areas. Does anyone have any suggestions for what type of cleaner might
be most effective?

Try some lemon juice from the bottle on a very small area. Let it sit for
a
minute and rinse well.

I'll give that a try.

While we are at it, how deep is the paver base in this area? Everyone
thinks the stain is from above. What if it is coming from a chemical
reaction from below? Some trees secrete nasty stuff from the roots though
I
am at a complete loss as to what it might be in your case. I recall
getting
orange hands while pulling out the roots of some tree/bush.

I can't see it coming from below. The pavers are 3-4 inches thick.
Under that is about 2-3 inches of gravel. Under that is 2-3 inches of
new dirt leveled and compacted. And, the stain appeared in just a few
hours and is in the exact shape of the tree shadow.

Anyway, thanks for the lemon juice suggestion.

Why don't you just call the contractor up and ask him to take a look. He
might know a helluva lot more than the people here. If not too many pavers
are involved, he might even be nice enough to replace them for you at a
reduced price or for free.