realclean
Member
What is the best way to have 2 3-stage vac motors in a portable hooked up for the best suck?
CFM is king in real world carpet cleaning.
If you have 13 amp 3-stage vacs, they are fairly close in series or parallel.
That's not quite true Larry. Putting vacs in series increases lift but airflow stays the same. In parallel, the lift stays the same but the airflow is increased. As long as you have enough lift with the one vac (136 inches water lift or so) adding the second vac in parallel will really increase performance. You need to have 2 inch plumbing or else all that airflow is wasted. Even on a 25 ft hose it will be noticeableThat is absolutely correct . . .
but the amount of LIFT is what generates CFM thru the wand head.
More lift at the wand generates more CFM.
P. S. Jesse;
If you have 13 amp 3-stage vacs, they are fairly close in series or parallel.
What machine do you have??
Yes, They are 3-stage vacs.
Could I get better dry times if I use a 2" hose? ( I never go over 25' from the machine)
If you go parallel and 2-inch Plumbing as cleanworks suggested
It's best to have 2 stand pipes going into the waste tank from the 2 vac motors.I just need to find a way to re plumb the vac hoses ( need some type of Y ).
Most guys make their own. I have seen some made with pvc pipe glued together, I have had one fabricated from aluminum or you can do as Papa John suggests and run 2 standpipes into the waste tank. You will require 2 ball shut off filters as well. Putting them through a manifold may give you a slight increase in suction and reduction in amperage. Example 2-vac motors attached to a box with a 2 inch opening. You will have 3-4 inches opening going in but only 2 inches coming out. Puts a little restriction on the vac motors which normally lowers the amperage a little.I just need to find a way to re plumb the vac hoses ( need some type of Y ).