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SEP 100

®

 D.E. Separation Tank Installation and User’s Guide

1.  Turn the pump off, shut off any automatic controls to ensure that the system is not inadvertently started during 

servicing. 

2.  Open the High Flow™ Manual Air Relief Valve, (and the waste drain valve, or cap, if your system has one).
3.  Remove hair and lint strainer pot lid and clean basket. Replace basket and secure lid.
4.  Open the drain valve and wait for the water to drain from the Sep 100

® 

D.E. Separation Tank before removing the bag 

containing D.E. and contaminants.

5.  Remove locking ring by depressing safety latches on both sides of ring and rotate counterclockwise, then remove tank 

lid.

6.  Remove the separation bag by pulling straight up on the bag handle loop.
7.  Dispose of waste in trash and rinse bag clean. Inspect bag for holes - replace if necessary. 
8.  Clean and remove debris from inside the filter tank and from the O-ring and O-ring groove on the tank body.
9.  Install the clean bag into the tank assembly making sure it is seated onto the separation tank ring.
10.  Replace the tank lid onto the tank body making sure it is fully and firmly seated on the tank body.
11.  Place lock ring over tank lid, and centering the lock ring on the threads of the tank body, turn the lock ring 

clockwise until the safety latches click and the lock ring hits the stops on the body. DO NOT ATTEMPT TO OVER-
TIGHTEN THE LOCK RING AFTER LOCK RING HAS HIT THE STOPS ON THE BODY.

 

Note:

 Any time the separation tank is opened, and/or separation bag is removed, be sure to generously coat the 

O-ring with silicone lubricant before reassembling the unit. DO NOT USE PETROLEUM BASED LUBRICANTS 
BECAUSE THEY HAVE A DETERIORATING EFFECT ON RUBBER.

12. Replace drain cap and reinstall manual air relief valve drain hose if used.

Cleaning the Air Relief Valve

1.  Turn the pump off and shut off any automatic controls to ensure that the 

system is not inadvertently started during servicing. 

2.

  OPEN THE HIGH FLOW MANUAL AIR RELIEF VALVE UNTIL IT SNAPS 

INTO THE FULL OPEN POSITION, THEN WAIT UNTIL ALL PRESSURE 
IS RELIEVED. 

3.  With the relief valve attached to the filter tank, pull out the locking tabs and 

remove the valve stem and cover assembly with a counterclockwise and 
lifting motion, see 

Figure 3

.

4.  Clean debris from the valve stem and body. Verify that the filter tank’s air 

passage is open by inserting a 5/16 in. drill bit through the valve body. Verify 
that the O-ring are in good condition, properly positioned, and lubricated 
with a silicone base lubricant. 

5.  Reinstall the valve stem and cover assembly with a downward and 

clockwise motion until it snaps into position.

Cleaning the Separation Tank

MAINTENANCE

The following information should be read carefully since it outlines the proper manner of care and operation for your filter 
system.  As a result of following these instructions and taking the necessary preventative care, you can expect maximum 

efficiency and life from the filter system.

Please heed all manufacturers’ posted instructions, warnings and cautions when using polyhexamethylene biguanide 
sanitizers or other filter cleaning solutions.

Figure 3

Summary of Contents for SEP 100

Page 1: ...SEP 100 D E SEPARATION TANK IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS SAVE THESE INSTRUCTIONS INSTALLATION AND USER S GUIDE ...

Page 2: ...l com Sanford North Carolina 8 A M to 5 P M ET Phone 919 566 8000 Fax 919 566 8920 Moorpark California 8 A M to 5 P M PT Phone 805 553 5000 Ext 5591 Fax 805 553 5515 Important Warning and Safety Instructions Installation Separation Tank Installation Bypass Valves Operation General Information Lock Ring Installation System Restart TABLE OF CONTENTS ii 1 1 2 2 2 3 3 i Maintenance Cleaning the Separa...

Page 3: ...the equipment Ensure that the disconnected circuit is locked out or properly tagged so that it cannot be switched on while you are working on the equipment Failure to do so could result in serious injury or death to serviceman pool users or others due to electric shock Position the filter and the air relief valve to safely direct water drainage and purged air or water Water discharged from an impr...

Page 4: ...to stand clear of the filter and pump during system start up shut down or servicing of the system filter The following information should be read carefully since it outlines the proper manner of care and operation for your filter system As a result of following these instructions and taking the necessary preventative care you can expect maximum efficiency and life from your filtration system Gener...

Page 5: ... rings Do not use pipe joint compound glue or solvent on the bulkhead connections 8 The base of the separation tank is provided with four 4 mounting bosses for the purpose of anchoring the tank to the concrete 9 The maximum working pressure of the separation tank is 50 psi Never subject the separation tank to pressure in excess of this amount even when conducting hydrostatic pressure tests Pressur...

Page 6: ...rvice or adjust the pool filtering system or heater 2 Before repositioning valve s and before beginning the assembly disassembly or any other service of the circulating system A Turn the pump OFF and shut OFF any automatic controls to ensure the system is NOT inadvertently started during the servicing B open the manual air bleeder valve C wait until all pressure is relieved 3 Whenever installing t...

Page 7: ... BODY 4 Follow the System Restart instructions below System Restart 1 Open the manual air relief valve until it snaps into the full open position this only requires a quarter turn counter clockwise Opening this valve rapidly releases air trapped in the tank 2 Stand clear of the tank then start the pump 3 Close the manual air relief valve after a steady stream of water appears 4 The system is not w...

Page 8: ...n tank is opened and or separation bag is removed be sure to generously coat the O ring with silicone lubricant before reassembling the unit DO NOT USE PETROLEUM BASED LUBRICANTS BECAUSE THEY HAVE A DETERIORATING EFFECT ON RUBBER 12 Replace drain cap and reinstall manual air relief valve drain hose if used Cleaning the Air Relief Valve 1 Turn the pump off and shut off any automatic controls to ens...

Page 9: ...the air relief valve on top of the filter when the valve is opened with the pump running see items 1 a and 1 b of this section above B If the D E is returning back to the pool upon backwashing check to make sure the bag is seated properly on the separation bag ring Also check the bag to see if it is torn or missing If the bag is torn a replacement is needed C The pressure gauge is an important par...

Page 10: ...0058 Pressure Gauge 3 310010Z Tank Lid Almond 310015 Tank Lid Black 4 59052900 Locking Ring Assembly 5 87300400 Body O ring 6 170099 Separation Bag 7 310004 Separation Bag Retaining Ring 8 178731Z Tank Bottom Almond 178743Z Tank Bottom Black 9 154712 Drain Cap Assembly 10 178732Z Union Nut C Clip 11 U11 200PS Union Nut 12 178746Z Union Diamond Seal 13 178733Z Union Threaded Half ...

Page 11: ...NOTES ...

Page 12: ...y noted names and brands of third parties that may be used in this document are not used to indicate an affiliation or endorsement between the owners of these names and brands and Pentair Water Pool and Spa Inc Those names and brands may be the trademarks or registered trademarks of those third parties Because we are continuously improving our products and services Pentair reserves the right to ch...

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