Im new to this forum. I have an old warehouse used to store farm machines. It had been unused for a past 2 years. Recently I planned to renovate it. While cleaning the debris I found the drains getting clogged and water recedes very slowly. I tried pressure pumping with water but not much difference did it make. Recently I saw on the internet about hydro jetting power flushing through a commercial plumbing service in Toronto. I think hydro jetting would be a better idea and what would be the cost of using it. The drain pipe is made of PVC which is 10. Also, I heard hydro jetting is quite expensive so are there any other ways of removing the clogs?