Depending on what you're watering... I am considering either a 15 or 25 gallon ATV sprayer. A 12 volt pump and sprayer lets you spray whatever, wherever. $89 and up from Northern Tool. Many are availabe on Ebay but seem high priced but lots of designs.
I'm also considering making one and going to a 30-55 gallon drum and putting it on a carry all on my 3pt.
1986 Ford 1910 with 770B (FORD) loader, 4 MFWD; 1986 Bolens G214,back hoe,loader,MFWD (Iseki) 21 hp)
Don123, at the local Co-op propionic acid(vinegar) comes in 55 gal flat sided plastic barrels. This is used to acidify stored grain to prevent fungus/mold growth. There was a $28 deposit fee. They can easily be rinsed out with baking soda; they have the common 1 1/2 " bung holes and don't roll around. I used two of these in the back of a van with a 1" ball valve on a washing machine return hose for watering trees before I had a well. You need a big hose with only gravity for pressure.
I run a number of garden hoses from an old dug well down hill to my garden. It is about 200 feet. The drop is about 15 feet. There is just enough pressure from gravity to run a small spinning sprinkler. When it gets hot, the hose sometimes collapses due to the vacuum. Is the poly hose you are talking about more ridged than garden hose? I think I would get a much better flow if it were more ridgid.
David
The 25gal sprayers are not going to do much for watering. THey are slow!! to empy so makes them poor for water transfer are not designed to move lots of water and if used on really hot days a lot of your water will never make it to the ground when sprayed out in a fine mist.
Most of those sprayers come with a 1 to 2 gallon-per-minute pump, which might do fine for flowers or a small garden, but would likely be too slow for larger areas. They are a very useful tool, however.
The balck poly is very rigid, is suitable for deep/direct burial, and would not collapse under vacuum. It's stiff enough that for a 90deg bend it has to be a radius turn, not a direct 90 or, as indicated it will kink. (You can reduce the radius if you heat it before bending and use a tube bender to prevent it from collapsing) You can get the stuff up to to a few inches in diameter if you want, (just not at your local garden store)