How much pole hose on your reel

Just switching to a van mounted system rather than carrying tanks and stuff to the property.
I am currently running 300 ft of supply and pole hose but would like to know what the maximum you guys use.
I am running a 12 v sureflow pump and have a spare in line should the first fail.
Have tried running both together and still get 3 lts per minute at 500 ft.
Some jobs will require about 800 ft of hose out.

I am currently hand balling air hose as a supply line but need some advice on decent hose reels. in an ideal world i would like 3 hose reels each with 300 ft of supply hose.

Heard good stuff about this but shipping is a killer.
[Microbore? Reinforced Hose 6mm ID / 11.5mm OD - Hoses - Pump & Hose - All Products Gardiner Pole

Any advice would be appreciated.

Bill

… That’s what I use. 150’ plus the rhino hose that came with my reach-it.
Tough as nails that hose is.

I have a 35’ pole and probably use not much more than 45’ of pole hose for the reason Andrew mentioned- too much and pressure may become an issue. We use 300’ of 3/8" on a hose reel before the pole connection.
I have had poor results with the Rhino hose. It was explained to me that my hose barb may be a tad too high OD as it constantly springs pinhole leaks right near the barb.