Best drainage pipe to use for burying down spouts

[marc5688]

I am burying downspouts for a customer and it has been called into question as whether to use perforated tubing or solid tubing,

I have used perf tubing for years without any problems

Any opinions on this?

[Gary Swart]

Sound to me like you are making French drains, and to my knowledge, they use perforated pipe. When I did this for my home several years ago, I trenched along side the house, put in some drain gravel, then the pipe and more gravel. Topped it off with soil. Works great.