Page 4
WARNING
The maximum working pressure for this
fi
lter is 50 psi.
Never subject the
fi
lter to working pressure exceeding
50 psi. Working pressures above 50 psi can cause
product failure or also cause the
fi
lter lid to be blown
off, which can result in death, serious personal injury,
or property dam age
Section 2. General Information
2.1 Introduction
This manual contains information for the proper
installation and operation of the Jandy
DEV Series
Diatomaceous Earth (DE) Filters. Procedures in this
manual must be followed exactly. For technical
assistance, contact our Technical Support Department
at 1.800.822.7933.
2.2 Description
Dirty water
fl
ows into a two or three port diverter valve,
then into the
fi
lter through the lower bulkhead on the
bottom of the tank and is directed through the DE grids.
The debris is collected on the surface of the grids as the
water
fl
ows through them. The clean water is directed
into the manifold, then through the outlet tube, and
fi
nally, out of the
fi
lter through the upper bulkhead
on the bottom half of the tank. The
fi
ltered water then
goes through the two or three port diverter valve and is
returned through the piping system to the pool.
As debris collects in the
fi
lter, the pressure will rise
and water
fl
ow to the pool will diminish. The
fi
lter will
eventually become so plugged with debris that it will
be necessary to perform the backwash procedure. It is
important to know when to backwash the
fi
lter. See Sec-
tion 6 for further discussion of backwashing the
fi
lter.
NOTE
A
fi
lter removes dirt and other suspended particles
but does not sanitize the pool. Pool water must be
sanitized and chemically balanced for clear water.
The
fi
ltration system should be designed to meet
local health codes. At a minimum, the system should
turnover the total volume of water in your pool two to
four times in a 24-hour period.
2.3 General Requirements
1.
For best overall performance, place the system as
close to the pool as possible.
2. The
fi
lter should be located on a level concrete
slab so that the orientation of the valve outlets and
the pressure gauge are convenient and accessible
for the installation and operation of the unit.
3. Protect
the
fi
lter from the weather.
4. If
fi
tting a chlorinator and/or any other device into
the
fi
ltration plumbing circuit, great care must be
exercised to ensure that the appliance is installed
in accordance with the Manufacturer’s Instructions
and any standards that may exist.
5.
We recommend the use of barrel unions to connect
each component of the water conditioning system
to ease in future servicing. Barrel unions are
provided with all Jandy
fi
lters.
6.
When performing hydrostatic pressure tests or
when testing for external leaks of the completed
fi
ltration and plumbing system, ensure that
the maximum pressure the
fi
ltration system is
subjected to
does not exceed the maximum
working pressure of any of the components
within the system.
2.4 DE Requirements
See your local pool distributor or dealer for DE type
recommendations. See Table 2 on page 10 for the
amount of DE to be used.
2.5 Speci
fi
cations and Dimensions
See Table 1 and Figure 1.
DEV48
DEV60
Filter Area (ft
2
)
48
60
Design Flow Rate (gpm/ft
2
)
2.00
2.00
Max Flow Rate Residential (gpm)
120
150
Max Flow Rate Commercial (gpm)
96
120
Six Hour Capacity (gal)
34,560
43,200
Normal Start Up Pressure (psi)
6-15
6-15
Max. Working Pressure (psi)
50
50
Dimension "A"
41 in.
47 in.
Table 1.
DE Filter Speci
fi
cations
Figure 1. Dimensions, Jandy DEV Series Filter
with Jandy NeverLube
®
Backwash Valve
18 ½ in.
10 ½ in.
28 in.
"A"
OUTLET
INLET
Port on
CV Model
Only
