So, there is something you can use to unclogg your household drain(O) if your having a problem. This product can be found at your local hardware or even grocery store.
Now, if your lawn has drainage issues you might need one of the following four drainage systems: Surface, Subsurface, French or Channel.
I would say the most common drain issue is Sinus drainage. If this is your problem a quick trip to the pharamcy for an antihistamine should fix you right up.
It's up to you to decide if you have a drainage issue and if so what kind you have. Or, you could just say DraiNO and skip this cache.