We are in a property less than two years old, so still in non-structural warranty period.
We have a retaining wall at the rear of our property that has water seeping through in the days following rain. The water leads to some mineral build up which is noticeable, given the retaining wall is painted black.
The wall itself looks structurally sound and there is an ag line behind it leading to drainage, just obviously not enough. Presumably the builder should have waterproofed the other side.
I spoke to the builder and he has offered to drill drainage channels in the wall and install conduit to avoid the staining.
Another mate of mine said reverse waterproofing it (on our side) would be better, to keep water from flowing through.
Or do I just leave it alone and accept we will have to clean the mineral cdeposit off every few months? (If so, what do I use to clean this kind of deposit off? Acid solution?)
