Here's a link on the Forum that talks about Window Wells and French Drains and the like. The Forum is FILLED with a lot of posts about 'basement' and 'crawlspace' problems and 'water' problems. Use your Browser's FIND feature to search the Forum for the aforementioned keywords (one at a time).
French Drain and Sump Sump Pump Problems (Forget about the fact that it's a WIndow Well problem. They have a french drain and a sump pump and are getting water in the basement. The solution(s) may apply to you.) My best to ya and hope this helps.