General Information - Hayward PRO-GRID DE4820 Guide De L'utilisateur

Your Hayward Pro-Grid™ Vertical Grid D.E. Filter combines superior water filtration with ease of operation and totally corro-
sion-free construction. It uses diatomaceous earth (D.E.), which is the most efficient dirt remover and filter medium known.
The D.E., which is usually fed through the skimmer at initial start-up, uniformly coats the curved vertical filter elements that
are covered with a custom fitted monofilament polypropylene filter cloth. As pool water is pumped through the control valve
into the bottom of the filter tank, the D.E. surface, or coating, filters out even the minutest particles resulting in clear, clean,
sparkling water.
After a period of time, the accumulated dirt in the filter causes a resistance to flow, the pressure rises, and flow diminishes.
This means the dirt holding capacity of the D.E. has been reached, and it is time to clean (backwash) your filter. With the
control valve in the back wash position, the water is automatically reversed through the filter, flushing trapped dirt, debris and
D.E. out the waste line. Once the filter is backwashed (cleaned) of D.E. and dirt, the control valve is manually re-sequenced
to filter position and a fresh charge of D.E. is added to resume normal filtering.
⚠
WARNING
– This product should be installed and serviced only by a qualified pool professional.
C 66 cm
B
A
45.7 cm
Inches
DE2420EURO
DE3620EURO
DE4820EURO
DE6020EURO
DE7220EURO
Page 4 of 8

GENERAL INFORMATION

INSTALLATION
12,7 cm
31,75 cm
A
Cm
32,0 81
34,1 87
40,1 102
46,1 117
52,0 132
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Only simple tools (screwdriver and wrenches), plus pipe seal-
ant for plastic adapters, are required to install and/or service
the filter.
1. The filter system should be installed on a level concrete
slab or other rigid base. Select a well drained and vented
area, one that does not flood when it rains. Position the filter
so that the piping connections, and winter drain are conve-
nient and accessible for operation, service, maintenance
and winterizing.
2. Position filter so the filter will drain by gravity.
3. If practical, place pump and filter in the shade to shield it
from continuous, direct heat from the sun.
4. Assemble appropriate Filter Control valve to filter. Lubricate
the O-ring first (we recommend using Jack's 327 Lubricant).
Align the two (2) valve pipe connections, with O-rings in
place, with the two openings in the side of the filter tank and
press in firmly. Secure the assembly to the tank connec-
tions with the two bulkhead lock nuts. Do not over-tighten.
5. Connect the pool suction plumbing between the skimmer,
pool outlet and the pump.
6. Install the pool return plumbing.
7. If pressure gauge is not installed, apply Teflon tape to
the gauge threads and carefully screw the gauge into the
gauge adapter assembly.
8. Do not locate pump controls over or near filter.
9. Verify water discharge from the filter manual air relief valve
is directed away from electrical devices
"B" Side
Inches
18
18
18
18
18
Pro-Grid
Required clearance
"C" Side
Cm Inches
46 15
46 16
46 18
46 22
46 25
Cm
38
41
46
56
63
Rev. A