Netafim SANDSTORM User manual

V 001.01 - JANUARY 2020
INSTALLATION MANUAL
SANDSTORM
™
20", 24" TANKS
METAL DOUBLE-CHAMBER MEDIA FILTER

© COPYRIGHT 2020, NETAFIM™
NO PARTS OF THIS PUBLICATION MAY BE REPRODUCED, STORED IN AN AUTOMATED DATA FILE OR MADE PUBLIC IN
ANY FORM OR BY ANY MEANS, WHETHER ELECTRONIC, MECHANICAL, BY PHOTOCOPYING, RECORDING OR IN ANY
OTHER MANNER WITHOUT PRIOR WRITTEN PERMISSION OF THE PUBLISHER.
ALTHOUGH NETAFIM™TAKES THE GREATEST POSSIBLE CARE IN DESIGNING AND PRODUCING BOTH ITS PRODUCTS
AND THE ASSOCIATED DOCUMENTATION, THEY MAY STILL INCLUDE FAULTS.
NETAFIM™WILL NOT ACCEPT RESPONSIBILITY FOR DAMAGE RESULTING FROM THE USE OF NETAFIM'S PRODUCTS
OR THE USE OF THIS MANUAL.
NETAFIM™RESERVES THE RIGHT TO MAKE CHANGES AND IMPROVEMENTS TO ITS PRODUCTS AND/OR THE
ASSOCIATED DOCUMENTATION WITHOUT PRIOR NOTICE.
CONTENTS
Introduction
Aim of this manual
Safety instructions
General instructions
Components and structure
On-site pre-installation preparations
Tools required for installation
Flange connection
Grooved coupling connection
Installation
Initial operation
Troubleshooting
Warranty
3
3
4
4
5
6
6
7
8
16
18
19
FOREIGN LANGUAGES
In the event that you are reading this manual in a language other than English, you hereby
acknowledge and agree that the English language version shall prevail in case of inconsistency or
contradiction in interpretation or translation.

SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL 3
INTRODUCTION
Aim of this manual
The aim of this manual is to provide the technician with general instructions for the installation of any
configuration of the SandStorm™ metal double-chamber sand filtration system.
All system components are shipped to the site packed in pallets and boxes with installation drawings, user
manual, and a packing list.
NOTE
This manual describes the generic installation process of a SandStorm™ filtration system.
The installation should be carried out in line with the installation drawings supplied with the system.
Safety instructions
Before handling any part of the system, carefully read the instructions and act accordingly.
NOTE
The maximum working pressure of the filtration system is 8 bar (116 PSI).
(For filtration systems made to order, see the maximum working pressure in the Product Order).
Check and make sure the pumps and valves do not exceed the tolerances of the system and match the
requirements of the system pressure and flow-rate specifications (see the documentation supplied with
the system).
WARNING
Do not perform installation or maintenance operations or open filter ports before the pressure in the
system is fully released. For draining purposes, open any valve downstream from the filtration system
until the pressure is fully released. Check the pressure gauge to be sure it is at 0 before proceeding.
TIP
If a valve downstream from the filtration system is not available
for pressure release, you can install a manual valve on the lower
2" socket of the outlet manifold end-cap.
Electrical connections and wiring must be done by an authorized electrician only.
Be sure that prior to any maintenance procedures, all electrical connections to the system are unplugged
(AC controller, pumps, etc.).
Work only with proper and standard tools (see Tools required for installation, page 6).
Use only original parts supplied/approved by Netafim™.

4 SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL
INTRODUCTION
General instructions
•Installation must be performed by experienced and knowledgeable technicians.
•Consult with your supervisor if problems occur during installation.
•Do not apply excessive force or pressure on components during installation.
Electricity
•AC controller only: Ensure that a suitable electrical power supply is available in the vicinity of the
installation for electrical connection of the controller (see Electricity connection, page 5).
•An additional electrical socket should be available at the installation site for installation and service.
Components and structure
A media filtration system is comprised of the following components:
Media filter tank
Backwash 3-way
hydraulic valve
Backwash
flow-control
valve
Filtration system
control kit
Air valve
Inlet manifold
Outlet
manifold
Backwash
manifold
Grooved coupling
Manifold
support legs
Inlet flange adaptor
Outlet
flange adaptor
Backwash
flange adaptor
Backwash
controller
Solenoids
Location of
the tank ports
1Filling port
2Service port
1
2

SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL 5
Concrete slab construction
The sand filtration system will weigh anywhere
from 250 kg up to a few tons. The system
foundation must take into consideration the total
weight of the system when filled with sand and
water.
The media filtration system should be installed on
a concrete slab, at least 10 cm thick, with proper
reinforcement and anchored to the ground.
The dimensions given in the table on the right are
the external filtration system dimensions and not
the concrete slab dimensions
The minimum slab dimensions should allow a
sufficient margin around the filtration system for
service and maintenance.
The slab should have a slight grade to allow for
water run-off, but not so great that the manifold
does not bolt together easily.
The soil all around the slab should be compacted
to prevent erosion.
INTRODUCTION
On-site pre-installation preparations
The following items should be set up on site before the installation of the filtration system.
Electricity connection
The BackFlush controller is supplied in either of two versions:
•100-240v AC input - powered by an external 100-240v AC to 12v DC power supply.
Requires mains electricity supply - 100-240v AC ~, 50/60 Hz 0.4 A Max.
Ensure that suitable electrical power supply is available in the vicinity of the BackFlush controller
A readily accessible circuit breaker, rated according to the BackFlush controller's total rated power for
peak demand, certified as a branch circuit over current protector, compliant with the national code and
requirements. Grounding connection: ≤ 10 Ω.
•6v DC input - powered by 4 x 1.5v D-size alkaline batteries (not supplied).
Does not require mains electricity supply.
NOTE
If the filtration system was not ordered with a BackFlush controller and is intended to be connected
to an existing irrigation system controller, see the irrigation controller user manual for instructions.
No. of tanks
External filtration system
dimensions
(length/width/height)
Total system
weight**
cm inch kg lbs
20" tanks
2209/120/132 82/47/52 500 110 2
3269/120/132 106/47/52 750 1653
4329/120/132 130/47/52 1000 2205
5389/120/132 153/47/52 1250 2756
24" tanks
2249/120/132 98/47/52 720 1587
3329/120/132 130/47/52 1080 2381
4409/120/132 161/47/52 1440 3175
5489/120/132 193/47/52 1800 3968
Straight-line filtration systems*
*For other filtration system configurations,
contact your local Netafim™ representative.
**Filled with sand and water

6 SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL
INTRODUCTION
Tools required for installation
•No special tools are needed. A standard full installer toolkit is adequate.
•To connect the control stand to the concrete slab: An electrical hammering drill and a concrete drill bit.
•To connect grooved couplings: The following wrenches are required:
Grooved coupling size Bolt and nut size
(mm)
Wrench size
(mm)
inch mm
250 M10 17
380 M12 19
4100 M12 19
6150 M16 24
•To connect flanges: The following wrenches are required:
Flange size Bolt and nut size Wrench size
up to 8" 5/8" 15/16"
10" to 14" 7/8" 1.1/ 8 "
Backwash pipe
A pipe is necessary to take the backwash water from the backwash manifold back to the water source
(comply with your local regulations) or to the closest drainage ditch.
In order not to limit backwash flow rate:
•The backwash pipe should be no longer than 20 m (65 ft).
•The pipe diameter should never be smaller than the backwash manifold diameter.
•If the backwash pipe length is 10 meters (33 ft) or less, it should be of the same diameter as the
backwash manifold.
•If the backwash pipe is longer than 10 meters (33 ft), it should be of a larger diameter than the
backwash manifold.
•The pipe should not ascend above the elevation of the flushing manifold outlet.
Flange connection
In most cases, the filtration system manifolds are connected to the main line with flanges.
ATTENTION
When connecting flange pipe connectors, do not forget to place the rubber gasket in place.

SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL 7
INTRODUCTION
Grooved coupling connection
All the main filtration system parts are connected with grooved couplings.
To connect a grooved coupling:
REV. DESCRIPTION DATE APPROVED
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THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
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PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
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Project:
3.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
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Part Name:
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PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
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±1°
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Project:
3.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
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Subject:
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Part Name:
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1:5
Finish:
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PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
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File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
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PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
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File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
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Part Name:
Material:
1:5
Finish:
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1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
/1
Quantity:
±1°
±0.05
≥ 0.5
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> 1000
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> 2000
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REV. DESCRIPTION DATE APPROVED
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QA
Project:
7.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
Part No.
Scale:
Sheet Size:
A3
Drawn By
Designed By
Subject:
Checked By
Part Name:
Material:
1:5
Finish:
Sheet: Of:
1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
/1
Quantity:
±1°
±0.05
≥ 0.5
≤ 3
> 3
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> 6
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> 120
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> 400
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> 1000
≤ 2000
> 2000
≤ 4000
≤ 10
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> 10
≤ 50
±0°30'
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±0.15 ±0.1 ±0.05 ±0.2 ±0.3 - ±0.5
REV. DESCRIPTION DATE APPROVED
Drawing No.
QA
Project:
7.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
Part No.
Scale:
Sheet Size:
A3
Drawn By
Designed By
Subject:
Checked By
Part Name:
Material:
1:5
Finish:
Sheet: Of:
1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
/1
Quantity:
±1°
±0.05
≥ 0.5
≤ 3
> 3
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> 6
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> 1000
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> 2000
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> 10
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QA
Project:
3.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
Part No.
Scale:
Sheet Size:
A3
Drawn By
Designed By
Subject:
Checked By
Part Name:
Material:
1:5
Finish:
Sheet: Of:
1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
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±1°
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≥ 0.5
≤ 3
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> 1000
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Drawing No.
QA
Project:
5.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
Part No.
Scale:
Sheet Size:
A3
Drawn By
Designed By
Subject:
Checked By
Part Name:
Material:
1:5
Finish:
Sheet: Of:
1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
/1
Quantity:
±1°
±0.05
≥ 0.5
≤ 3
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> 6
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> 1000
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> 2000
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≤ 10
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> 50
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> 10
≤ 50
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±0.15 ±0.1 ±0.05 ±0.2 ±0.3 - ±0.5
REV. DESCRIPTION DATE APPROVED
Drawing No.
QA
Project:
5.slddrw
File Name:
General Tolerance According to ISO 2768-f
LINEAR DIMENSIONS
ANGULAR DIMENSIONS
Permissible deviations in mm for ranges in nominal lengths
Permissible deviations in degrees and minutes
for ranges in nominal lengths
3-D Proj.
Part No.
Scale:
Sheet Size:
A3
Drawn By
Designed By
Subject:
Checked By
Part Name:
Material:
1:5
Finish:
Sheet: Of:
1 1
PROPRIETARY AND CONFIDENTIAL
THE INFORMATION CONTAINED IN THIS
DRAWING IS THE SOLE PROPERTY OF
NETAFIM. ANY REPRODUCTION IN PART
OR AS A WHOLE WITHOUT THE WRITTEN
PERMISSION OF NETAFIM IS PROHIBITED
Rev.
/1
Quantity:
±1°
±0.05
≥ 0.5
≤ 3
> 3
≤ 6
> 6
≤ 30
> 30
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> 120
≤ 400
> 400
≤ 1000
> 1000
≤ 2000
> 2000
≤ 4000
≤ 10
> 400
> 120
≤ 400
> 50
≤ 120
> 10
≤ 50
±0°30'
±0°20'
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±0.15 ±0.1 ±0.05 ±0.2 ±0.3 - ±0.5
a. Slide the rubber gasket onto
the end of one of the pipes to
be connected.
Apply a dedicated lubricant
or liquid soap to the coupling
rubber gasket to facilitate
insertion.
b. Place the end of the other pipe
to be connected so that it
touches the end of the first pipe,
and slide the rubber gasket
over the end of the second pipe.
The rubber gasket should cover
the end of both pipes equally,
leaving the groove of each pipe
exposed.
c. Place the two housing elements
around the rubber gasket. Make
sure the rims of the housing
elements are inserted into the
grooves all around both pipes.
d. Put the bolts and nuts in place
and close them to a tight fit, but
do not fasten them yet.
e. When you are satisfied that
the connected parts are properly
positioned and the connections
are properly aligned, fasten the
two nuts alternately until the
coupling is evenly tightened
around both pipes.
a
b
c
d e

8 SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL
INSTALLATION
This chapter describes the generic installation process of a SandStorm™ filtration system. The installation
should be carried out in line with the installation drawings supplied with the system.
1. Align the gravel tanks on the platform according to the dimensions in the table.
2. Connect a nipple to each tank inlet.
a
a
a
a
1
ATTENTION
To enable the connection of the manifolds,
position all the tanks with the intlet 1pointing
exactly to the front.
*The distances in this table are for straight-
line systems. For the distance between
adjacent rows of tanks in other system
configurations, see the installation drawings
supplied with the system.
Tank size
Distance between tanks - center to center (a)
cm inch
20" 60 23.62
24" 80 31.50

SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL 9
NOTE
The manifolds are supported by support legs. Each support leg should be installed immediately after
installing the part it supports. Place the support legs according to their quantity and locations in the
system installation drawings. Use the long support legs to support the inlet manifold, the medium legs
to support the backwash manifold and the short legs to support the outlet manifold.
INSTALLATION
3. Connect the backwash manifold to the backwash valves
and the backwash manifold sections to each other
with grooved couplings.
2. Connect a backwash valve to each nipple.
Be sure that the position of the backwash valves
is per the flow arrows marked on the valve.

10 SANDSTORM
™
DOUBLE-CHAMBER INSTALLATION MANUAL
5. Connect the outlet manifold to the
outlets of the tanks and the outlet
manifold sections to each other
with grooved couplings.
6. Check and confirm that the position of the system is where it should be relative to the inlet and outlet
main pipelines. Readjust the filtration system location if needed.
INSTALLATION
4. Connect the inlet manifold to the backwash valves
and the inlet manifold sections to each other
with grooved couplings.