STA-RITE S7S50 Owner's Manual
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STA-RITE S7S50 Owner's Manual

System 3 high rate sand filters
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Sta-Rite Pool/Spa Group
293 Wright Street, Delavan, WI 53115
International: 262-728-5551, FAX: 262-728-7550
www.starite.com
Union City, TN • Delavan, WI • Mississauga, Ont. • Murrieta, CA
© 2004, Sta-Rite Industries
SYSTEM 3
HIGH RATE SAND FILTERS
O
W
N
E
INSTALLATION, OPERATION & PARTS
S7S50
R '
S
M
A
N
MODELS
S8S70
Printed in U.S.A.
U
A
L
This manual should be furnished to
the end user of this filter; its use will
reduce service calls and chance of
injury and will lengthen filter life.
S282 (Rev. 4/20/04)

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Summary of Contents for STA-RITE S7S50

  • Page 1 Sta-Rite Pool/Spa Group 293 Wright Street, Delavan, WI 53115 International: 262-728-5551, FAX: 262-728-7550 www.starite.com Union City, TN • Delavan, WI • Mississauga, Ont. • Murrieta, CA S282 (Rev. 4/20/04) © 2004, Sta-Rite Industries Printed in U.S.A.

  • Page 2: Table Of Contents

    To avoid unneeded service calls, prevent possible injuries, and get the most out of your filter, READ THIS MANUAL CAREFULLY! The Sta-Rite System 3 High Rate Sand Filter: • Is designed to filter water for swimming pools. • Is an excellent performer; durable, reliable.
  • Page 3 • Check all clamps, bolts, lids, and system accessories before testing. • Release all air in system before testing. • Tighten Sta-Rite pump trap lids to 30 ft. lbs. (4.1 kg-cm) torque for testing. • Water pressure for test must be less than 25 PSI (172 kPa).

  • Page 4: General Information/Specifications

    (50 PSI/345kPa) pressure! and read instructions before working on filter. TABLE I - OUTLINE DIMENSIONS IN INCHES (mm) Sand Model No. of Clamps S7S50 28-1/2(724) 42(1067) 36(914) 53-1/2(1360) 2” NPT S8S70 32-1/2(825) 42-1/4(1073) 40(1020) 54-1/4(1380) 2” NPT TABLE ll - FILTER SPECIFICATIONS AND OPERATING INFORMATION...

  • Page 5: Installation

    2" WC212-134P from backing up into filter and deforming internal components. • Install Sta-Rite Two Position Slide Valve or Multiport Selector Valve with fil- ter. See Table lll. NOTICE: Use of valves • Filter ports and valve ports are furnished with union connections.

  • Page 6: Initial Filling

    FILTER DISASSEMBLY/ASSEMBLY To avoid equipment damage and personal injury, never change handle position on control valve while pump is running. BEFORE DISASSEMBLING FILTER: 1. STOP PUMP. 2. OPEN air release valve and drain fitting. 3. WAIT until all pressure is released and water drained from filter tank and system before loosening clamp knobs.

  • Page 7: Startup/Operation

    5. Install clamps. Do not tighten clamps yet. 6. See Figure 4 for clamp tightening sequence. Tighten all clamp knobs se- curely hand tight. NOTICE: To equalize stresses on tank, be sure to tighten clamps in se- quence shown. DO NOT work your way around the filter tightening adja- cent clamps.

  • Page 8: Backwash

    Backwash Filter (Multi-Port Valve): To prevent equipment damage and possible injury, turn pump OFF be- fore changing valve position. 1. With pump OFF, set valve to ‘BACKWASH’ position. 2. Open air release valve (Key No. 1, Page 10). 3. Start pump, circulating water backwards through filter to waste. 4.

  • Page 9: Replace Internal Assembly

    2. Skimmer basket - remove debris. 3. Stop pump, release all pressure from system. Remove trap cover and bas- ket, remove debris. 4. Bleed air from filter each time system is started. 5. Check pump for leaks. If found, see pump owner's manual. 6.
  • Page 10 2859 0597...

  • Page 11: Repair Parts List

    32155-4047 • Decal - Warning 32165-4004 32165-4005 • Decal - Operating Instruction 32155-4046 32155-4048 † Available for lateral repairs. • Not illustrated * Includes all decals and labels. ** Model S7S50 uses seven clamps and bolts; Model S8S70 uses eight.

  • Page 12: Troubleshooting Guide

    TROUBLESHOOTING GUIDE 1. Short Cycle between backwashes: NOTICE: Time between backwashes will vary with each installation and between different areas of the country. Ask installer about normal back- wash interval in your area. The following causes and remedies are for cycle times shorter than normal for your area.

  • Page 15: Warranty

    The foregoing warranties relate to the original consumer pur- chaser (“Purchaser”) only. Sta-Rite shall have the option to re- HRPB, DEPB, System 3, and PL – Tanks ..10 years pair or replace the defective product, at its sole discretion.

This manual is also suitable for:

S8s70

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