Recently we were called for a service call at a kids camp in Southern Maine.
Their drains were running extremely slow and had been for the last year or two and they didn’t know quite what was going on?
So we televised the line and found out what was restricting the flow.
Roots!
The Camp had some beautiful old growth trees on the property many of which were on the pipe line leading to the outlet.
Once we started to jet, the water flow from the pipe almost knocked our employee off his feet! The pipe ran for 24 hours straight draining the water.
We followed up a couple of days later and the owners basement was completely dry and the pipe was flowing freely:)
If you have old growth trees or shrubs around you perimeter drain or positive drain and your basement is starting to take on water, you probably have roots in your drain. An easy fix first by televising the line and then to high pressure jet or cut the roots out with a root cutter. This in no way harms trees or shrubs…A better alternative than chemicals:)