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HIGH RATE SAND FILTER SYSTEM

For Above Ground Swimming Pools

O   W   N   E   R ’   S

M   A   N   U   A   L

INSTALLATION, OPERATION & PARTS

Aquatools

293 Wright Street, Delavan, WI 53115

North America: 800-752-0183, FAX 800-582-2217 
International: 262-728-5551, FAX: 262-728-4461, TELEX: ITT 4970245

839 0494

© 2001, Printed in U.S.A

AT260 (Rev. 5/1/01)

Pump Parts

System Series Number

Pump No.

Horsepower

On Page:

AT11523, AT11823, AT12023, AT11526, AT11826, AT12026

AT2407110

3/4

15

AT11524, AT11824, AT12024, AT11525, AT11825, AT12025

AT2407130

3/4

15

AT11521, AT11821, AT12021

AT2407120

3/4

16

AT11533, AT11833, AT12033, AT11536, AT11836, AT12036

AT2410110

1

15

AT11534, AT11834, AT12034, AT11535, AT11835, AT12035

AT2410130

1

15

AT11531, AT11831, AT12031

AT2410120

1

16

AT11843, AT12043, AT11846, AT12046

AT241501

1-1/2

15

AT11844, AT12044, AT11845, AT12045

AT241503

1-1/2

15

AT12041

AT2411120

1-1/2SPL

16

AT12040

AT2024

1-1/2

15

AT11544, AT11840

AT2411

1-1/2

15

This manual should be furnished to the end user
of this system; its use will reduce service calls and
chance of injury and will lengthen system life.

Summary of Contents for AT11521

Page 1: ...T2407110 3 4 15 AT11524 AT11824 AT12024 AT11525 AT11825 AT12025 AT2407130 3 4 15 AT11521 AT11821 AT12021 AT2407120 3 4 16 AT11533 AT11833 AT12033 AT11536 AT11836 AT12036 AT2410110 1 15 AT11534 AT11834...

Page 2: ...this product unless they are closely super vised at all times 3 Risk of electrical shock Connect only to a grounding type receptacle protected by a ground fault cir cuit interrupter GFCI Contact a qua...

Page 3: ...igh pressure or city water system 2 Use equipment only in a pool or spa installation 3 Trapped air in system can cause explosion BE SURE all air is out of system before operating or testing equipment...

Page 4: ...95 F 35 C 95 F 35 C Turnover in Hours 6 Hours 9 070 Gal 34 330 liters 11 340 Gal 42 922 liters 15 700 Gal 59 424 liters 8 Hours 12 100 Gal 45 799 liters 15 120 Gal 57 229 liters 20 930 Gal 79 220 lit...

Page 5: ...from pipe friction Be solid level rigid vibration free Be installed so that trap suction inlet is below pool water level at all times This allows pump to prime Have adequate ventilation to prevent mot...

Page 6: ...h a mallet to help seat clamp Hazardous pressure Clamp will not hold unless it is seated properly DO NOT START PUMP until clamp ends are 1 4 6mm apart or less 5 If clamp will not pull up to 1 4 6mm ga...

Page 7: ...Valve Installation Page 6 when reinstalling valve See Figures 6 and 7 3114 1197 Align Ports R E C I R C U L A T E B A C K W A S H E W A S T E F I L T E R Port labeled PUMP should align with pump disch...

Page 8: ...actly consult a licensed electrician Do not use an extension or drop cord with this system it could cause a fire hazard or low voltage problems Wet cords cause shock hazards Extension cords can easily...

Page 9: ...th heavy swimmer loads operating filter 6 to 12 hours per day should be suffi cient Carefully monitor water chemical balance and follow recommendations of your local pool profes sional Water Maintenan...

Page 10: ...protection placed around system for shutdown 2 See Startup Page 8 for reactivation of the filter 3 Inspect all electrical wiring to pump for damage or deterioration over the shutdown period Have a qua...

Page 11: ...ve lid Key No 3 by pulling straight up while holding plug shaft Key No 5 down with thumb C Inspect Internal Parts Inspect plug and gasket spring O Rings and internal washers Key No 4 Replace if necess...

Page 12: ...lts see Figure 15 Remove seal plate Key No 9 Tap stationary half of seal out of seal plate see Figure 16 10 If necessary disconnect electrical wiring from motor terminal board and remove motor Key No...

Page 13: ...rcuit breaker tripping 5 Consult dealer installer or service representative TROUBLESHOOTING GUIDE FILTER A Short Cycle between backwashes NOTICE Time between backwashes will vary with each installatio...

Page 14: ...11 Drain Cap 1 14965 0025 14965 0025 14965 0025 12 O Ring Drain Cap 1 U9 371 U9 371 U9 371 13 Drain Lateral Tube 1 24201 0058 24201 0058 24201 0058 14 O Ring Lateral Tube 1 U9 370 U9 370 U9 370 15 La...

Page 15: ...9 229 U9 229 U9 229 19 Strainer Basket 1 C108 33P C108 33P C108 33P 20 Trap Body 1 C153 53P1 C153 53P1 C153 53P1 21 Pipe Plug 1 4 NPT w O Ring 2 U178 920P U178 920P U178 920P 22 Capscrew 5 16 18x1 1 4...

Page 16: ...21 Drain Plug w O Ring 2 U178 920P 22 Cap Screw 4 U30 64SS 23 Lock Washer 4 U43 11SS 24 Plain Washer 4 U43 41SS 25 Trap Outlet Gasket 1 C20 123 27 Plain Washer 4 U43 117SS 28 Cap Screw 4 U30 52SS Name...

Page 17: ...962 0032 3 Dowel Pin 1 35857 0021 4 Washer 1 14965 0007 5 Decal Operating Instr 1 14965 0020 6 Screw 7 37067 0714 7 Valve Cover 1 14965 0011 8 O Ring 1 35505 1228 9A Washer 2 14965 0007 9B Washer 1 14...

Page 18: ...t to negligence misappli cation improper installation or maintenance or other cir cumstances which are not in AquaTools direct control Full warranty coverage is in effect for one year after instal lat...

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