1000-1500 gal. Lay down type, not stand up type. Cheap. They sell them online new for $2500. Thats way way more than im wanting to spend. Ill eventually see one on govdeals close enough to go get it. Thought I would try on here first. Idea is theres a branch close by, I fill the tank out of the branch when it is running after a good rain, then I can fill a sprayer several times out of the tank. Dont have to be pretty, just has to hold water.

Not exactly what you’re asking for but I can give you all the wire cage 265 gal tanks you want.

Food grade? Or at least nothing caustic? I'm upgrading my off grid water system from 50g drums.

Gov Planet.com

They’ve had foliar fertilizer in them. That’s all

I appreciate the offer but I need something alot bigger. They come up on govdeals pretty regular and sell cheap. Theres some on there now, theyre just too far away. Were fixin to set out a new orchard. Itll cost me over two grand to get a meter set over there so im trying to figure out how to spray without running back and forth to the house for water. Ill eventually get the meter set but it might be a minute. The down payment and planting the orchard is getting pretty deep in my pocket.

Thats close to what im looking for. I was thinking a round tank that lays on the ground. The water has to come from above it and the sprayer has to be below it. We have a good bit of fall so it shouldnt be to hard to work b it out, the tank just cant be real tall.

You could plumb multiple free small tanks together and get all the capacity you want. As long as they are all level with each other, they would act just like one big tank.