Palancar
Well-known member
You might check with a HVAC contractor. Personally I wouldn't think it would be any different than using the plastic flexible duct as they use on AC central units, unless you run some extreme heat through it.
If you go with the PVC or ABS, use a friction fit and SS sheet metal screw to lock in place for modifications down the road if needed.
I have 2 vortechs for the frag tank and I want to try the eductors for the returns. I also am waiting for a new wetside from ecotech marine. I talked to Steve over there about the 450 and he suggested building a dry overflow box so I could line 4 vortechs and make a x-pattern...I'll have to give it some thought. I'm interested to see how those eductors workout !
70x turnover ??? That's some serious flow buddy.