Hello all, just about to buy a home and basement has an inside trench with a sump installed from a reputable company , also noticed in the area of the furnace hw heater and washer/dryer a 12"x12" hole with 2-3 in of standing water covered by 2 thin cinder blocks.. any ideas to what this is ?

Probably a rough in for a future tub or shower. Remove the blocks and suck out the water to see if you have a 4" drain pipe in gravel.

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Originally Posted by smoothbore26

hello all, just about to buy a home and basement has an inside trench with a sump installed from a reputable company , also noticed in the area of the furnace hw heater and washer/dryer a 12"x12" hole with 2-3 in of standing water covered by 2 thin cinder blocks ..any ideas to what this is ?

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This is a dap-out for a tub installation. (We don't leave open holes for a shower).
Remove the water and start digging. You should find either a 2" trap or a 2" capped off pipe down there.
Now you can install a trap and raiser and bring the raiser up a few inches over the floor line. This gives you the option of filling the dap-out with dirt and cementing in the last 3 inches for a shower base or you can leave it open and install a tub. Good luck, Tom

OK thank you I will do that as soon as I am able to get in there... we close on sept 10Th..