Metal Water Reservoir

A larger tank for irrigation

ARK: Survival Evolved calls this structure the Metal Water Reservoir, and ARK: Survival Ascended names it the Metal Water Tank. It is an upright water store for an irrigation network and the upgrade of the plain Water Reservoir. The in-game text: "Attach this to pipes to store rain, irrigation, or manually deposited water for later use. Will automatically irrigate nearby crops if attached to a tap. Stores a large amount of water!"

Capacity and filling

The tank holds up to 500 water. The ARK Wiki puts that at 2.5 times the plain reservoir's capacity, with 3 times its durability. Pipes fill it, and condensation tops it up slowly all the time, faster when rain or snow falls. If the network's usual source fails, the tank serves as a temporary supply. You can pour water in from a Tek Canteen, Canteen, Water Jar or Waterskin, but you cannot refill those straight from the tank: put a tap on a pipe the tank is connected to and drink or fill containers there. A pipe fed by a Water Well cannot fill it.

Placement in ASE and ASA

In ASE the reservoir snaps onto metal or stone irrigation pipes, whether straight, inclined, vertical or an intersection. It has to sit on a pipe, which is why it cannot go on rafts or platform saddles, and destroying that pipe destroys the reservoir as well. In ASA it behaves like a water pipe: it supplies water within 3000 Unreal Engine units (10 foundations) and has a linking range of 10000 units (about 33 foundations).

Crafting the tank

The engram unlocks at level 41 for 20 engram points, with the Water Reservoir as its prerequisite. It is crafted in a Smithy or from an Argentavis Saddle out of 75 Metal Ingot (or Scrap Metal Ingot) and 25 Cementing Paste (or Achatina Paste). Crafting takes 3 seconds and gives 1.5 XP.

Weight, loot and damage

Each tank weighs 4 and they stack to 100, so a full stack weighs 400. Our records list it on 14 maps and count 63 crate types that can contain it, such as Aberration Blue and Aberration Surface Blue. As a metal structure it takes damage only from a short list of sources, among them explosives, the Tek Rifle, the Titanosaur, Titans and the DodoRex.