To nealtw~cleanened out all the Gunk-found old clay pipe, hole never got anymore water so filled with peagravel for now, not wanting to seal totally in case of future problems! Thanks for your help! mzzbunny65
After replacing all galvenized and cast iron pipes a drainage pipe for kitchen (now replaced) was removed-shortly afterwards where it was cut off at base the concrete around it collapsed and we now find the hole looks like it has "sludge in it-we are wondering......should we fill it with...