Combining two PWs

[Mountain View]

A couple of questions.

If I were to feed the output of two 4gpm units into the same hose, assuming the unloaders were set to go into bypass at the same psi, how many gpm's could I expect to get? I assume tip size and such would play into it.

Also, using a hot box on a trailer......any issues I should look out for? I have the potential of picking up a 6gpm belt drive cold water unit at a very good price; if I were to buy a hot box and hook it up I could have a hot water unit for a fraction of the cost of buying a 6gpm hot water skid.

EDIT: How difficult is it to hook up and run a separate hot box if I already have a electric start, belt drive, 12v cold water unit?

[Paul Kassander]

You would get 8gpm as long as you have the correct tip in. If you do this be sure you have a trap style unloader installed to prevent any back flow of pressure into either machine. They have a built in check valve.