Can drain out bathroom be used in a toilet? Good work from start to finish. However, although many of our clients are certain a drain survey is something they require, not many are sure of the cost of carrying out the process so, how much does a cctv drain survey cost? Here’s a really cool infographic from our mates at. Kurt at koegel plumbing is amazing!! should have called him sooner thank you!!! Heat litres of water in gas mode.