I am looking for a fog Distribution system, for a production of Sweeney Todd (Melbourne, Australia). The Idea of what im looking at is having the smoke coming out of 2 or 3 places on stage (for example a drain grate). The Hire company we use, supply Coemar Booster Fans but I cannot find the specs for them. is it possible to construct the system out of PVC piping?, and if that was the case, how many Booster Fans would I need? Additional Notes: Plan to use a Swefog Live T26 Smoke Machine. Stage is a medium size. 9 metres deep.