All you need to do is make it so you can run water from your tender tank straight to the sprayer pump and then preferably have a big hose off of your pump that goes directly to the bottom of your sprayer tank.

The more head pressure you have (water level in the nurse tank above the pump) the easier it is to get the pump primed.


We don't have a Bestway but we've been filling our Redball with the hyd pump on the sprayer for several years and before that we did it on our old Demco sprayer as well.   I think the Demco was setup to do so when we bought it and when we got the Redball we had to do a few minor modifications to the plumbing to make it work.

Its not complicated, don't try to make it complicated.