Originally posted by Phil H:
Sylvan covered the health issues but it sounds like you may have another problem by leaving plastic pipe exposed to sunlight. One model code, the Uniform Plumbing Code, does not allow ABS or PVC DWV pipe to be left exposed to sunlight except the portion that goes through the roof. And, that portion must be protected with water based synthetic paint.
Great Point Phil,
ILL bet the person who asked the origional question is now wondering about how the heck am I going to fix this mess