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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
© 2002, Printed in U.S.A.
DE FILTER
Model AT8230, AT8236
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INSTALLATION, OPERATION & PARTS
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2161 1295NF
U.S. PATENT NO. 5190651 (Other patents pending)
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This manual should be furnished to
the end user of this filter; its use will
reduce service calls and chance of in-
jury and will lengthen filter life.
AT339 (Rev. 4/30/02)
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Summary of Contents for AquaTools AT8236

  • Page 1 DE FILTER Model AT8230, AT8236 R ’ Ç I N L I N L 2161 1295NF Ñ INSTALLATION, OPERATION & PARTS This manual should be furnished to the end user of this filter; its use will reduce service calls and chance of in- jury and will lengthen filter life.
  • Page 2: Table Of Contents

    Hazardous Pressure! • Release all air in system before testing. • Tighten AquaTools™ trap lids to 30 ft. lbs. (4.1 kg-cm) torque for testing. Can cause tank explosion. • Water pressure for test must be less than 25 PSI (172 kPa).
  • Page 3: General Information

    NEVER operate filter with air trapped inside. When to Clean the Filter • The AquaTools modular DE filter is designed to filter water for swimming The filter module should normally be pools. On a new pool installation, we recommend:...
  • Page 4: Specifications

    One half pound of DE will fill a one pound coffee can. From * PLEASE NOTE: Based on lab tests, the recommended Pool 4085 1001 DE required for the AT8230 is 6 lbs. The AT8236 only requires 5 lbs. FIGURE 1B – Piping Connections...
  • Page 5: Installation

    • Support pipe independently to prevent strains on filter. • Fittings restrict flow; for best efficiency use fewest possible fittings. • For ease of maintenance, use AquaTools™ union couplings to connect the pip- ing to the filter inlet and outlet ports.
  • Page 6: Initial Startup

    Posi-Lok™ ring or threads on lower tank shell as this may collect grit and make removal difficult. 7. To prepare precoat slurry, mix diatomaceous earth (DE) and water. Use four pounds of DE for Model AT8236; use six pounds of DE for Model AT8230. Latch DO NOT use more DE than recommended.
  • Page 7 Disassembly: 1. Stop the pump. 2. Close isolation valves to prevent flooding. 3. Open air release valve on top of filter tank to release all pressure from inside of tank. NOTICE: Make sure that waste water disposal complies with local codes and ordinances.
  • Page 8: Module Cleaning Procedure

    MODULE CLEANING PROCEDURE When to Clean the Filter Follow all steps in the “Disassembly” section of this manual. The filter module should normally be cleaned when the pressure gauge reading The filter module should be removed and cleaned when pressure rises more increases 10 PSI over the start-up pressure than 10 psi (69 kPa) above startup pressure.
  • Page 9: System Inspection/Winterizing

    SYSTEM INSPECTION General: Wash the outside of the filter with a mild detergent and water. Rinse off with a hose. NOTICE: DO NOT use solvents to clean the filter; solvents may damage plas- tic components in the system. NOTICE: Open the air bleed valve and bleed all air from the filter each time the pump is stopped and restarted.
  • Page 10: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. Short Cycle Time: D. Excessive air in filter; non-precoated areas may plug. Vent air from tank and check for pump suc- NOTICE: CycleTime will vary with each installation tion pipe leaks. Clean air bleed filter in grid as- and between different areas of the country.
  • Page 11: Repair Parts List

    2 U78-820P Pressure gauge*** 1 15060-0000T Pressure gauge screen*** 1 WC8-72D Air bleed assembly 1 24800-0122 Filter module (AT8230) 1 27002-0030S Filter module (AT8236) 1 27002-0036S Flapper valve 1 27001-0011 Spring check valve** 1 27001-0130S • Platform base§ 1 –...
  • Page 12: Warranty

    Retain Warranty Certificate (upper portion) in a safe and convenient location for your records. DETACH HERE: Fill out bottom portion completely and mail within 10 days of purchase/installation to: ▼ AquaTools, Attn: Warranty Dept., 293 Wright St., Delavan, WI 53115 Warranty Registration Card ■ ■...

This manual is also suitable for:

At8230

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