I'm in the market for one, having outgrown my one-gallon
pump-spray-pumpsomemore applicators. Problem is, there are too many
choices, so I would like to hear your opinions about 3-4 gallon backpak
sprayers. The sprayer will be used to apply fungicide, pesticide, and
foliar feedings to a 500 ft² veg garden, foundation landscape plantings, and
a few dwarf fruit trees.

Piston or diaphram pump?
Best PSI?
Brass for wand and/or nozzle or will poly suffice?
Lumbar support and strap comfort?
Durability?
Leaks?
Solo, Field King, Gilmore, SP Systems, or Hudson?

TIA

--
God loves you, and I love you.
And you can count
On both of us

As a powerful message
That people who
Wonder about
Their future can hear."

President Bush Jr. - 3/4/04