I was thinking of using the Enforcer as the main machine with the Ninja behind pulling through the exhaust of the Enforcer.
Would this work....would the waste tank stand it.
You could give a try , one vac at a time . The Enforcers tank looks really strong , i doubt a couple of more vacs would do anything in series .
I must try that myself .. as in attach my booster to the exhaust , i will measure the lift and generally see what it does for performance .
Mine is plugged in in parallel to raise airflow . I cant accurately measure the increase in airflow but i have noticed the max lift is developed faster when the booster is plugged in as i the needle on the lift gauge rises significantly faster .
You could also switch the low powered vac out for high powered one , i did that too , its an east performance gain , i can see any downside so far .