I posted about this some time back. We had the house secured with
piers but but raised as this would have been more expensive and would
have possibly caused damage to the house. As it is, the outside brick
is not cracked and the sheetrock is intact so we decided to leave well
enough alone.

The only problem is that we do have a sag in our sewer line under the
house as a result of settling. The toilet works fine most of the time
and I have to clear the line periodically as a part of routine
maintenance. Since the toilet is emptying into standing water so it's
having to displace water, I was wondering if a pressure assisted
toilet might work better. The toilet always flushes slowly and it's
in our guest bath, also my wife's bath the rest of the time.

I was thinking that a higher tank would create more pressure during
the flush because of the higher elevation of the water level but maybe
the pressure assisted would be even better.

What do you think?

BradMM