On Apr 15, 8:34 am, "diablo" wrote:
I realize that there could be a lot of variables in what the cost would be
of having a mound septic system installed. But I'd like to ask for some
generalizations if I may to gain some information.

I have a three bedroom house on a 3/4 acre lot, the ground is flat and
filled with clay so the builder installed leach system doesn't work well due
to lack of the ability of the soil to absorb the water. The house is about
30 years old.

I'd like to ask those who have either installed or had installed a mound
system what I could expect an approximate cost to be? Also what could I do
to help reduce the costs? I'm capable of trenching, running PVC etc.

Also is there a better alternative than a mound system?

It's been over 30 years since I had a 2nd field installed at ~$1,000.
It uses the same tank and goes to a junction box where fields are
easily switched as they are both gravity fed. Both are evaporation
fields but on 2nd one, perk was better. Even then, 2nd field came up
and I had to switch back to first after several years.
You are lucky that your system has lasted this long. One contractor
explained to me that they do not perk as well over the years due to
salt build-up and need a couple of years of rain water draining
through them to restore them. With a 2nd switchable field, you should
never have to worry about septic again.

Frank