Netafim SANDSTORM User Manual

14 SANDSTORM
™
SINGLE-/DOUBLE-CHAMBER USER MANUAL
MAINTENANCE
Replacing the media
WARNING
Do not perform 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.
The sand media usually requires replacement every 3 to 5 years, depending on water quality and how
much the system operates.
1. Close all the valves, open the top and bottom service ports of all the tanks and remove their covers.
2. Drain and flush all the media from the tank.
CAUTION
Do not use tools to help remove the media - under-drain diffusers ("flutes" or "mushrooms") could
be damaged.
TIP
If the sand media is solidified inside the tank and does not pour out of the bottom service port by
itself, you can crumble it with pressurized water through the bottom service port.
3. Rinse and clean the inside of the tank.
4. Visually check (with the aid of a flashlight) the inside of all the tanks, through the filling port, for
damaged, missing or unsecured under-drain diffusers ("flutes" or "mushrooms"). Replace, re-fit, re-
connect and re-secure if necessary (See tank replacement parts: single-chamber - page 20, double-
chamber - page 22).
5. Make sure that the bottom service port and its gasket are clear of any remaining gravel particles and
close the bottom service port.
ATTENTION
Single-chamber only
Before filling the tanks with media, Fill each tank with water up to a third of its height with a hose
through the filling port before media filling to prevent damage to the under-drain diffusers when
pouring the media.
6. Fill the tanks with media through the filling port. Fill each tank up to the media level marker on the filter tank.
*Crushed basalt.
Tank diameter
(inch)
Sand quantity*
kg lbs
12 60 132
16 90 198
20 120 265
24 180 397
30 240 529
36 360 794
48 575 1768
Tank diameter
(inch)
Sand quantity*
kg lbs
30 270 595
36 350 770
48 675 1490
Single-chamber Double-chamber
7. Flatten the surface of the media.

Netafim SANDSTORM Specifications

General

Brand	Netafim
Model	SANDSTORM
Category	Water Filtration Systems
Language	English