The new "M" series tanks are designed with strength and gravity flow in mind. They are lower in profile for less wind resistance and ease of gravity flow. In past experiences, we have had homeowners wanting to add a rainwater system to their existing home, barn, garage or other structure, but because of the elevation of their land, extensive excavating was necessary in order to install the tank at a height preferable for gravity flow from existing gutters, and so our "M" series was born ! Our "M" series standard tank height is only 6'8", allowing gravity flow to the tank from most existing structures. The "M" series is a true 20 gauge, Galvanized G115 wall panel for maximum strength. Grade 8 bolts and a double-hole pattern from bottom to top creates an incredibly strong wall seam. Standard tank includes removable ladder and 30" access hatch for easy access.

ModelGallonsTank DiameterSand Pad Required
3M-23800 9'2"15'2"
4M-26800 13'4"19'4"
5M-210,37216'5"22'5"
6M-214,93819'8"25'8"
7M-220,33222'11"28'11"
8M-226,55626'3"32'3"
9M-233,61029'6"35'6"
10M-241,49432'1038'10"
11M-250,36836'1"42'1"
12M-259,75239'4"45'4"
13M-270,12642'8"48'8"

Pinnacle Water Tanks M Series
Pinnacle Water Tanks M Series