Pentair SM/SMBW 2000 - Manual (Page 12)

6
SM/SMBW 2000 Series™ Filter Installation and User’s Guide
7. Clean your filter when pressure reads between 8-10 psi higher than the original starting pressure. Your
filter pressure reading will increase as it removes dirt from your pool. However, this buildup of pressure
will vary due to different bathing loads, temperature, weather conditions, etc.
a. MY ORIGINAL STARTING PRESSURE IS ___________ psi (pounds per square inch). I SHOULD
BACKWASH (CLEAN) THE FILTER AT __________ psi.
8. Check carton for any evidence of damage due to rough
handling in shipment. If carton or any filter components are
damaged, notify freight carrier immediately.
9. The filter should be mounted on a level concrete slab.
Position the filter so that instructions, warnings and the
pressure gauge are visible to the operator. It also should be
positioned so that the piping connections, control valve and
drain port are convenient and accessible for servicing and
winterizing.
10. Provide space and lighting for routine maintenance access.
Do not mount electrical controls over filter. Install electrical
controls (e.g., on/off switches, timers, control systems, etc.)
at least five (5) feet from the filter. This will allow you
enough room to stand clear of the filter during
system start up.
11. Allow sufficient clearance around the filter to permit
visual verification that the clamp is properly installed
around the tank flanges, see Figure 1.
12. Allow sufficient space above the filter to remove
the filter lid for cleaning and servicing. This
distance will vary with the model of filter you are
using. See Table 2 for the required vertical
clearance.
How to Operate Filter
WARNING —THIS FILTER OPERATES UNDER HIGH PRESSURE.
When any part of the circulating system, e.g., clamp, pump, filter, valve(s), etc. is serviced, air can enter
the system and become pressurized. Pressurized air can cause the lid to be blown off which can result
in severe injury, death, or property damage. To avoid this potential hazard, follow these instructions.
1. Set rotary valve handle in the filter position.
2. Open air relief valve on top of filter. STAND CLEAR OF THE FILTER.
3. Start pump and wait until a steady jet of water emerges from air relief valve, then close valve.
4. Introduce the required amount of Diatomaceous Earth into filter, see page 4, Table 1 .
5. Filter will operate efficiently until pressure gauge indicates time for backwashing.
Table 2.
Figure 1.
Vertical
Model Clearance Req. NSF
SM/SMBW-2036 60 in. yes
SM/SMBW-2048 66 in. yes
SM/SMBW-2060 72 in. yes
SM/SMBW-2072 78 in. yes