The smell coming from the toilet is most likely
a dried out wax ring under the toilet.

The outside smell could be one of 3 things:

1. coming from the roof vent pipes due to downdrafts off a hill, or a temperature inversion
bringing the sewer gas (that comes out the vents) to the ground instead of up and away.

If this is the case, try some "vent pipe filters"
that filter out the sewer gas, at http://www.odorhog.com They have a lot of
satisfied customers and lots of testimonials.

or

2. Is it coming from the drainfield?

or

3. Is it coming from a leak in the tank ?

To check to see if it's the vent pipe, climb
on the roof and have someone flush the toilet
and run water, and sniff the vent pipes while
they do that.

-Dave A.

P.S. I'm the webmater for www.odorhog.com :-)

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Since we got it we have noticed a bad sewer smell coming from the toilet and sometimes outside. The drains work perfectly so we don't think it is the vent. Do you have any ideas what could be causing this?

• vent pipe filter