"Roger Ramjet" wrote in message .net...
Most towns don't have a code that covers irrigation systems. According to
Hunter the min dept for the pipe should be 5 inches. Most core aerators
wont't go down more than 2-2.5 inches. Once in a while, when mine is done,
the may pull out a 3 - 4 incher plug based on how moist the soil is. I know
my irrigation pipes are not down that deep, especially in spots where there
a significant grade change. I had my lawn areated 2 times a year, and they
have yet to hit a pipe. I flag the sprinkler heads.


I'm only concerned about the sprinkler system. May be I should opt for
any good manual method to aerate.

does anyone have any suggestions about a good manual aeration method.
I heard that the shoes are useless. Since we're talking about a small
area I was wondering if there are any alternatives to core aerator
machine.

Another question I have is when is it a good time to do? The lawn is 3
years old and we have clay soil (zone 7b/8a).

Thanks for suggestions.