Vinyl liner pool with water getting behind liner. Constant problem. Have installed about 15K worth of drains around pool which is not working (some are just drain tile, some are huge in diameter). Live in NE Ohio so clay soil. Would a sump pump help remedy this? Is this even possible in my climate? We are not DIY'ers so we are just looking for someone reputable to tell us what is wrong and how we can (hopefully) fix it. 40 X 20 with deep end. Our original pool builder is not being helpful with this issue. Thanks in advance for any guidance.