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Diatomaceous Earth Pool Filters - DEL Series Filter
Section 2. General Information
2.1 Introduction
This manual contains information for the proper instal-
lation and operation of the Jandy
®
DEL Series Diato-
maceous Earth (DE) Filters. Procedures in this manual
must be followed exactly. To obtain additional copies of
this manual contact us at 707.776.8200
ext. 237. For address information see back cover.
2.2 Description
Dirty water fl ows into the fi lter through the lower bulk-
head 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 up-
per bulkhead on the bottom half of the tank. The fi ltered
water then goes into a MPV (Multiport 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
xercised 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. Barell 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 9 for the amount
of DE to be used.
2.5 Specifi cations and Dimensions
See Table 1 and Figure 1.
DEL48
DEL60
Filter Area (ft
2
)
48
60
Design Flow Rate (gpm/ft
2
)
2.00
2.00
Max. Flow (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
WARNING
The maximum working pressure for this
fi
lter is 50
psi. Never subject the
fi
lter to pressure exceeding 50
psi, even when conducting hydrostatic pressure tests.
Pressures above 50 psi can cause the lid to be blown
off.
Figure 1. Dimensions, Jandy DEL Series Filter
with Jandy NeverLube
®
Backwash Valve
INLET
OUT LET
"A"
18½"
10½"
25"
Summary of Contents for DEL Series
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