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READ AND FOLLOW SAFETY 
INSTRUCTIONS!

This is the safety alert symbol. When you see this symbol on your filter or in

this manual, look for one of the following signal words and be alert to the

potential for personal injury.

warns about hazards that 

will

cause death, serious personal injury, or

major property damage if ignored.

warns about hazards that 

can

cause death, serious personal injury, or

major property damage if ignored.

warns about hazards that 

will

or 

can

cause minor personal injury or

property damage if ignored.

NOTICE 

indicates special instructions not related to hazards.

Carefully read and follow all safety instructions in this manual and on equipment.

Keep safety labels in good condition; replace if missing or damaged.

Incorrectly installed or tested equipment may fail, causing
severe injury or property damage. 

Read and follow instructions in

owner's manual when installing and operating equipment. Have a
trained pool professional perform all pressure tests.

1. Do not connect system to a city water system or other external source of 

pressurized water.

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 be-

fore operating or testing equipment.

Before pressure testing, make the following safety checks:

• Check all clamps, bolts, lids, lock rings 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).
• Water Temperature for test must be less than 100

o

F. (38

o

C).

• Limit test to 24 hours. After test, visually check system to be sure it is ready for

operation. Remove pump trap lid and retighten hand tight only.

NOTICE:

These parameters apply to Sta-Rite equipment only. For 

non-Sta-Rite equipment, consult equipment manufacturer.

2

Table of Contents

Safety Instructions ................................................................................................2

General Information.............................................................................................3

Specifications.......................................................................................................4

Installation ...........................................................................................................5

Initial Startup .......................................................................................................6

Filter Disassembly / Assembly...........................................................................6-7

Module Cleaning Procedure ................................................................................8

Special Cleaning Instruction .............................................................................8

System Inspection/Winterizing .............................................................................9

Troubleshooting Guide.......................................................................................10

Repair Parts List..................................................................................................11

Warranty............................................................................................................12

WARNING

Hazardous Pressure!

Can cause tank 
explosion.

Do not connect filter to
compressed air under any
circumstances.

Summary of Contents for PLD50

Page 1: ...International 262 728 5551 FAX 262 728 7550 www starite com Union City TN Delavan WI Mississauga Ont Murrieta CA 2003 Sta Rite Industries Printed in U S A S339 Rev 12 9 03 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 2161 1295 OUTLET OUTLET RELEASE RELEASE E N G L I S H F R A N Ç A I S E S P A Ñ...

Page 2: ...l source of pressurized water 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 be fore operating or testing equipment Before pressure testing make the following safety checks Check all clamps bolts lids lock rings and system accessories before testing Release all air in system before testing Tighten Sta Rite pump trap l...

Page 3: ...locked in place before operating filter Maintain pressure gauge in good working order Replace a damaged gauge immediately Cleaning interval is based on pressure rise not on length of time filter is op erated Different water conditions will have different normal cleaning inter vals Check local codes for restrictions on waste water and DE disposal require ments NOTICE Some pool disinfectants may clo...

Page 4: ...PECIFICATIONS FIGURE 1A Dimensions in inches mm Table 1 Recommended DE Manufacturers Johns Manville Celite 545 GREFCO Inc Decalite 4200 Eagle Picher Minerals Inc Celatom Table 2 Filter Specifications PLD50 PLD70 Filter Area sq ft m2 30 2 8 36 3 3 Lbs kg of DE Used 6 lbs 2 7 kg 4 lbs 1 8 kg Maximum Flow Rate gpm L m 60 227 70 265 Max Operating Pressure psi kPa 50 345 50 345 Max Continuous Water Tem...

Page 5: ...ently to prevent strains on filter Fittings restrict flow for best efficiency use fewest possible fittings For ease of maintenance use Sta Rite union couplings to connect the piping to the filter inlet and outlet ports Keep piping tight and free of leaks pump suction line leaks may cause trapped air in filter tank or loss of prime at pump pump discharge line leaks may show up as dampness or jets o...

Page 6: ...ocked remove it and the upper tank shell Inspect and clean the O ring and all sealing surfaces Relubricate the O ring NOTICE Lubricate O ring only with the silicone grease provided or equiva lent as other lubricants may cause the ring to swell DO NOT lubricate Posi Lok ring or threads on lower tank shell as this may collect grit and make removal difficult 7 To prepare precoat slurry mix diatomaceo...

Page 7: ...it as follows 1 Press down on the small catch behind the safety latch and press or tap the latch out of the Tee slot in the tank see Figure 7 2 Snap the new latch into position NOTICE DO NOT operate the filter if the safety latch is damaged or will not hold the Posi Lok ring in the locked position Assembly 1 Inspect and clean the tank ring threads and O ring groove Replace dam aged parts as necess...

Page 8: ...le or oils which are not removed by hosing down module Be sure to dispose of spent chemicals according to all applica ble codes and waste disposal ordinances Use a soft stream nozzle to minimize flying water and spray Risk of fire or explosion Isolate filter from system before chemi cal cleaning rinse filter and elements completely before returning to service If filter cannot be isolated remove me...

Page 9: ...to explode with risk of severe injury or death to anyone nearby Use only a low pressure below 5 PSI high volume blower when air purging the pump filter or piping NOTICE Protect the filter from freezing Allowing the filter to freeze will dam age it and will void the warranty 1 Clean the filter according to instructions Page 8 before winterizing 2 Stop the pump 3 Open the air release valve open all ...

Page 10: ...age 6 B Insufficient cleaning follow cleaning instructions closely and clean thoroughly see Page 8 C Water is chemically out of balance consult pool professional D Excessive air in filter non precoated areas may plug Vent air from tank and check for pump suc tion pipe leaks Clean air bleed filter in grid as sembly with a hose and soft flow nozzle E Filter is too small Install an additional filter ...

Page 11: ...820P 10 Pressure gauge 1 15060 0000T 11 Air bleed assembly 1 24800 0122 12 Filter module PLD50 1 27002 0030S 12 Filter module PLD70 1 27002 0036S 13 Flapper valve 1 27001 0011 14 Spring check valve 1 27001 0130S Platform base 1 Accessory package 1 27001 0140 Decal logo 1 27001 0041 Decal warning 1 27001 0042 Decal operating instr 1 27003 0043 Decal nameplate PLD50 1 27003 0045 Decal nameplate PLD7...

Page 12: ...inal consumer pur chaser Purchaser only Sta Rite shall have the option to re pair or replace the defective product at its sole discretion Purchasers must pay all labor and shipping charges necessary to replace the product covered by this warranty Requests for warranty service must be made through the installing dealer This warranty shall not apply to any product that has been subject to negligence...

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