Recommended Backwash Flow Rates For Various Media - Pentair AUTOTROL MAGNUM 293 Installer Manual

Installer manual Autotrol Magnum 293 - 298 Logix 742-762 - System sizing
Flow control disc
[gpm]
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Info
Drain line flow controls above 40 gpm (9.08 m
drain line.
4.1.3

Recommended backwash flow rates for various media

Media
(35.6 cm)
* Softening Resin
2
(5.0 gpm/ft )
2
(12.25 m/h/cm )
* Fine Mesh
Softening resin
2
(2.8 gpm/ft )
2
(6.86 m/h/cm )
30 / 110
Insert 1
3
[m /h]
4.994 Green
5.221 Green
5.448 Red
5.675 Green
5.902 White
6.129 White
6.356 Brown
6.583 Brown
6.81 Orange
7.037 Green
7.264 Green
7.491 Green
7.718 Green
7.945 White
8.172 White
8.399 White
8.626 Orange
8.853 Orange
9.08 Orange
14" 16"
(40.6 cm)
Tank Tank
5 7
3 4
Insert 2
Green
Green
Red
Green
White
White
Brown
Brown
Orange
Green
Green
Green
Green
Green
White
White
Orange
Orange
Orange
3
/h) require external control installed in
Tank diameter
18" 21"
(45.7 cm) (53.3 cm)
Tank Tank
9 12
5 7
Insert 3
Red
Brown
Red
White
Green
White
Brown
Brown
Orange
Green
Green
Green
Green
Green
White
White
Orange
Orange
Orange
24" 30"
(61.0 cm) (76.2 cm)
Tank Tank
15 25
9 14
Ref. MKT-IM-012 / D - 03.02.2022
Insert 4
Black
Black
Red
Black
Black
Black
Brown
Green
Black
Brown
Green
White
Orange
Green
White
Orange
Green
White
Orange
36"
(91.4 cm)
Tank
35
20