Making sure pipes have proper slope and the job is done right! Is no longer a plumber, nintendo has officially said. Tried the conventional methods of unblocking a drain or waste pipe? now here’s a natural method you could try too. You can return any unused product to us in its original condition for a refund within 30 days of delivery to you please note that we may be unable to accept the return of made-to-measure products unless they are faulty or have.