Watts M8421-COM User Manual
Watts, Anti-scale water treatment systems, The problem
The problem
Calcium creates scale in pipes,
on appliances and other plumbing
surfaces. This leads to higher
heating and energy costs and
expensive repairs to appliances,
such as ice machines, coffee makers,
dishwashers and cooling towers
in commercial buildings.
Scale can also be a source for bacteria
to grow, which can be a health concern
in drinking water applications.
Calcium, on the other hand, is important
to human health, and supplements
are recommended if Calcium is reduced
or totally void in one's diet.
The solution
WATTS
®
Anti-Scale systems
transform Calcium ions into
Calcium crystals, which are stable
and cannot attach to pipes, sur-
faces, hardware or heat exchanger
components. The crystals are so
small they are easily rinsed away
by the water flow.
Commercial models
Note: By-pass valves are optional. KC11V3006 is optional by-pass valve for 1" systems. Maximum hardness is 25 grains per gallon at specified flow rates.
Note: Commercial systems designed for long runs and high usage. By-pass valves are optional. Maximum hardness is 25 grains per gallon at specified flow
rates.
Residential models
PART NUMBER
TANK SIZE
(IN.)
TANK TYPE PIPE SIZE
(IN.)
MEDIA
LITERS
GRAVEL
LBS.
SERVICE
FLOW
GPM
FLOOR SPACE
L X W X H
(IN.)
SHIP
WT. (LBS)
M8408-RES
8x35
Vortech
1"
3.5
NA
10
11x11x42
30
M8409-RES
9x35
Vortech
1"
4
NA
12
12x12x42
32
M8410-RES
10x54
Vortech
1"
4.5
NA
15
13x13x61
37
M8412-RES
12x52
Vortech
1"
6.5
NA
20
15x15x59
45
M8413-RES
13x54
Vortech
1"
7.5
NA
25
15x15x61
51
Part Number
Tank Size (In.) TANK TYPE Pipe Size
(In.)
Media
Liters
Gravel
Lbs.
Service Flow
GPM
Floor Space
L x W x H
(In.)
Ship
Wt. (lbs)
M8409-COM
9x35
Vortech
1"
5.5
NA
12
12x12x42
32
M8410-COM
10x54
Vortech
1"
6.25
NA
15
13x13x61
37
M8412-COM
12x52
Vortech
1"
9.25
NA
20
15x15x59
45
M8413-COM
13x54
Vortech
1"
11
NA
25
15x15x61
51
M8414-COM
14x65
Vortech
1"
12.5
NA
30
15x15x72
77
M8416-COM
16x65
Standard
1.5"
16.5
50
50
17x17x72
138
M8421-COM
21x62
Standard
1.5"
28
100
70
22x22x69
250
M8424-COM
24x72
Standard
2"
40
200
100
28x28x79
500
Note: For satisfactory results recommended flow rates
and model sizing must be followed.
Watts
®
Anti-Scale Water Treatment Systems
Benefits
•
Scale is virtually eliminated!
•
Aids in removing existing scale.
•
No costly repairs to
appliances due to scale.
•
No salt.
•
No brine tank.
•
No backwash.
•
Saves water!
•
No electricity.
•
Easy installation.