18
SANDSTORM
™
SINGLE-/DOUBLE-CHAMBER USER MANUAL
TROUBLESHOOTING
If media is running out through the outlet manifold during filtration:
Replacing a damaged under-drain diffuser part ("flute" or "mushroom"):
1.
Release the pressure and drain the filtration system. Open any valve downstream from the filtration
system or the manual valve (if installed) on the outlet manifold end-cap, until the pressure is fully
released. Check the pressure gauge to make sure it is at 0 before proceeding.
2.
Empty the water from the filtration system.
TIP
To speed up emptying the water from the filtration system,
you can temporarily dismantle the outlet manifold end-cap.
3.
Open the top service ports of all the tanks.
4.
Gently remove the media from all the tanks.
WARNING
Do not use tools (such as a shovel) to remove the media, as this could damage the tank under-drain
diffusers ("flutes" or "mushrooms").
5.
Clean any media remaining on the under-drain diffuser with pressurized water (with a hose, through the
top service ports).
6.
Visually identify the damaged under-drain diffuser part/s ("flute/s" or "mushroom/s") with the aid of a
flashlight.
ATTENTION
There may be more than one tank losing gravel.
ATTENTION
Screw, unscrew and fasten the under-drain diffuser parts by hand only. Do not use tools, as this
could damage the under-drain diffusers ("flutes" or "mushrooms").
7.
Manually unscrew the damaged under-drain diffuser part.
8.
Check the integrity of the following parts and replace them it if necessary:
• Single-chamber tank - the plastic washer (yellow).
• Double-chamber tank - the rubber gasket.
WARNING
A damaged rubber gasket may be difficult to pull out. Do not use a screwdriver (or any metal tool)
to remove it, as this could damage the tank protective coating.
9.
Replace the damaged under-drain diffuser part ("flute" or "mushroom") with a new one.
ATTENTION
Do not forget to put the following parts back in place:
• Single-chamber tank - the plastic washer (yellow).
• Double-chamber tank - the rubber gasket.
REV.
DESCRIPTION
DATE
APPROVED
Drawing No.
QA
Project:
MTL SNG 480508 S D08.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
MTL SNG 480508 S D08 BFC DC SOL DC
NGR
13/02/2017
Barga
Subject:
Checked By
Part Name:
Material:
1:50
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
≤ 120
> 120
≤ 400
> 400
≤ 1000
> 1000
≤ 2000
> 2000
≤ 4000
≤ 10
> 400
> 120
≤ 400
> 50
≤ 120
> 10
≤ 50
±0°30'
±0°20'
±0°10'
±0°5'
±0.15
±0.1
±0.05
±0.2
±0.3
-
±0.5