downspouts

My 1950s house has the sump discharging into the septic tank, which I understand is not appropriate. I plan to route the discharge through a brick exterior wall at a point less than 2' from a point where I'm installing a downspout extension. Does it make sense to tie the sump discharge into the...

I am planning to bury my downspouts and push them to the front of the property using 4' PVC. However, I live in Michigan and the one thing I'm worried about is the pipe freezing and breaking. I'm thinking that, if I'm pitching everything correctly and I have a drain hole on the low side (where...