"sun tea" is a method of preparing iced tea by steeping
the bags in a large jar of water that is placed
in a sunny area to get solar power to heat the
water.

The jars are great for pumping because they have
a screw-off lid that is about 4-5" in diameter
(to fit over your cock and balls) and a spigot
at the other end. I removed my spigot and slipped
my tubing in the hole but others have been able to just
place the tubing over one end of the spigot in order
to utilize the spigot's on-off valve.

The jar is (I think) a gallon-size and are available
in the u.s. in many locations--like dept. stores during
the warmer months.

hope this helps.