Plumb the pump for hose end fittings and I can use it to pump from the house water tank for drip watering and swap to the small tank for liquid fertilizing through the drip system. Little calcium and potassium for flowering/fruiting stage. It's 15 gallons and I have 16 pepper/mater plants.
Might need two of them because I've been wanting one for my little tractor anyway and then I'd have one for water and organic nutrients and have one for nasty chemicals.
This tank is 34" long and the outer edges of the back of fenders on the little tractor are 35" apart so it would sit pretty right behind the seat.
Would be nice on occasion to spot spray an area with Permethrin where I'm going to be working the next day. Perimeter fence work etc. Go spray a fruit tree before the Japanese beetles eat it. Water in a tree with the clean tank.