I’ve relocated a sump pit in my 1969 split level. I was able to tie in the original weeping tiles that used to discharge into a floor drain to the sanitary line via a valve that long ago rusted shut, resulting in previous owners having a sump pump installed almost directly in front of the back door.
The pit is 36″ deep as the weeping tiles enter at their original depth at about 24″ below the finished slab floor. Soils here are clay/silt loam and there was a great deal of groundwater around the 30″ depth below the floor. The old sump liner was only perforated to about 24″ deep and the pump only cycled during extremely heavy rains.
Should I add holes to my sump pit? I’ve read some great advice on this forum that it’s not necessary to de-water the entire street and that perhaps I should just have holes slightly around the level at which the original tiles entered the pit (24″). Most of my backfill around the pit is 3/4 clean crushed stone that extends outward a couple of feet on one side where I excavated to tie into the sanitary line for a shower drain. If this area stays saturated with water will I be doing undue damage to the cast iron sanitary line that will now be sitting in water/gravel?
Thanks so much for the advice. You guys are awesome!
Replies
I wouldn't add the lower holes. What would you gain?