On Jan 18, 8:20*am, Mikepier wrote:
In my ongoing basement reno project, I am going to install a sump pit
and pump in the furnace room to deal with rare occurences of heavy
rains and high water table. I have a few questions.

The pits I've seen at HD and Lowes are 18" diameter and 22" deep. How
close to the foundation wall can I install it? Any concerns with
hitting the footing? *My basement is solid concrete walls. Due to
clearance issues in the furnace room, the closer I am to the wall the
better. For a 18" diameter, should the hole be 21" diameter?

Also as far as the discharge pipe which 1 1/2" PVC. I have to go up
approx 8 feet, then 3 feet across horizontally .If I get a 1/3 HP
pump, can it handle that ?

Foundation footings can be anything from 12" to 24" depending on the
code at the time and the size of the structure. I'm guessing you are
going to jack hammer through the existing concrete floor? I'd do
enough to accomidate a range. You are going to have to patch the
floor when you are done anyway. Then when you dig the pit you will
probably find the footing and can adjust from there. Just fill with
gravel if you have to widen your hole to avoid the footing. You want
to not dig below the bottom of the footing. If you are using one of
those plastic pits you can always shorten it if you need to.