See here https://www.pomwaterproofing.ca/french-drain/ - this is how pipes are installed and grooves break through so that water can freely pass through natural filters, which are also made by hand - this is gravel, sand, and fine-grained earth. Everything works very well together, so you can definitely appreciate such work. Believe me, experts in their field will definitely complete the task with a bang. A French basement drain is the best solution you can make for your basement.