The best way to use the boom less sprayer is to measure it's spray width with the 3ph at different heights
. You can restrict the width when needed or spray to 20'+ when you want, by knowing the spray widths of the unit when the 3ph is at different heights.
Fill the sprayer with water only
and take the tractor and sprayer onto pavement and see the spray width's with the 3ph at different heights. Write the results in the sprayer manual or on the end of the spray tank, opposite the tank fill so the water doesn't wash off the information. Even with a perm marker the information should still be there, so they are easy to find. Saves time searching for the results next time you use the sprayer....
Having the 3ph fully raised is also going to tend to tip the sprayer forward somewhat depending upon top link, etc., which causes the boom less nozzles to spray Up and Out, verses straight down. This will provide the widest application but with the least control.
You can lower the 3ph down to where the spray width is barely wider than the width of the tractor. Using water on pavement is a great way to gather the data to make using this most useful. It's also helpful to see the impact on spray drift, etc with breezes. Once you know the actual spray widths, you can make the application quite targeted and accurate, verses what you can see watching the spray over the lawn, etc.
If you don't have a wireless remote control for the sprayer, get one. They make precision application much easier than a manual switch you have to reach, etc. Having the wireless fob in your hand while driving and you can turn that sprayer on and off with quite a bit of precision. You can add wireless controls which are universal for not much cost.
Also, until you get used the sprayers patterns, i suggest Using water to check the sprayers function and make sure you don't have drips, leaks, plugged nozzles,
etc. as you don't want to have to empty a sprayer full of chemicals if you can't get the sprayer working correctly.
It's a major hassle to put 60 gallons of mixed chemicals in an alternate container should you need to make a repair, etc. Much easier to deal with water and then add the chemicals. Once its working, add the chemicals and recirculate the tank to blend it in and then get busy spraying.
Having a high quality hand sprayer with hose for the sprayer is also very helpful. Mine has this sprayer shown in the picture and its great. The nozzle is brass and adjusts like a fire nozzle, it can spray very strong streams or nice spray width patterns. The hand held sprayer nozzle and hose are more useful than I ever imagined they would be. You want high quality on the nozzle so it doesn't drip, ,etc.
.This is my sprayer with the hand held nozzle and hose and wireless remote, I just opted out of the booms and went to the 3 boom less nozzles and am very happy. It will spray 20' wide easily and unless you have a massive lawn your boom less sprayer should work quite well.....plus it allows you to get into tighter areas between trees, etc. Personally, I wouldn't want the booms, but obviously many people do.
Cleaning the sprayer tank is a pain and hard to do well. I will fill the sprayer with water and the neutralizer / cleaner and let it soak. Then drive the tractor around so the water really sloshes around in the tank to help rinse it down. When you dump the neutralizer, etc if you have a stone area or where you don't want any growth, us that area is likely to be barren after rinsing the tank out there. And you need to try and have it close enough to a fresh water source the really rinse the tank down on the inside.
The tank drain is slow so you have to keep rinsing the tank as it drains to keep the inside clean.
When done, don't forget to run the boom less sprayers and rinse out the hoses and sprayer nozzles with clean water including the hand held hose and spray head.
One last tip, when I fill my tank with water, before adding chemicals, Often it takes some time to purge the air out of the lines to get the pump to push water through the lines. If you hold the pick up hose down in the water i n the tank and put the end of the fresh water hose against the end of the pick up hose line, the force of the fresh water will push the air out of the lines and cause the boom less nozzles to spray water, Another reason to use water only while getting started.
Purging the lines with clean water is fine. purging them with chemicals blended means you are reaching down into the tank etc with chemicals which I would rather avoid doing. I always wear rubber gloves when handling any chemicals including driving the tractor when spraying and then I throw away the gloves when done cleaning the tank.
Enjoy your new sprayer.........I am sure you will...........