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Waterway

Crystal Water D.E. 36–60

In-Ground D.E. Filter

Waterway Crystal Water vertical-grid D.E. filter family in 36, 48, and 60 square-foot sizes, with manual design flows from 72 to 120 GPM and model-specific D.E. charges.

Waterway Crystal Water D.E. Filter System

Specifications

Filtration
Filter TypeVertical-grid diatomaceous earth (D.E.)
Filter Area570-0036: 36 sq. ft.; 570-0048: 48 sq. ft.; 570-0060: 60 sq. ft.
Design Flow Rate570-0036: 72 GPM; 570-0048: 96 GPM; 570-0060: 120 GPM
Media Charge570-0036: 4.5 lb; 570-0048: 6.0 lb; 570-0060: 7.5 lb D.E.
Cleaning Pressure NoteBackwash when pressure rises 8–10 PSI above the recorded clean starting pressure
Maximum Working Pressure50 PSI (3.45 bar)
Physical
Service Clearance6 in. side clearance; 11, 17, or 23 in. above for the 36, 48, or 60 sq. ft. model
Installation SurfaceLevel concrete slab, very firm ground, or equivalent in a well-drained location
Clamp Torque216 in-lb with a 3/4 in. socket and torque wrench during tank-lid reassembly

Pros & Cons

Pros

  • Three manual-rated sizes cover 36 to 60 square feet and 72 to 120 GPM.
  • The source provides exact D.E. charges, service clearances, and grid part numbers.
  • The service dial can be set from the recorded clean pressure to show the 8–10 PSI cleaning threshold.

Watchouts

  • Every backwash requires a fresh, model-specific D.E. charge.
  • Tank reassembly requires the exact clamp sequence and 216 in-lb torque.
  • The pressurized tank must be fully vented and depressurized before service.

Error Codes & Troubleshooting

Pressure +8–10 PSI
Backwash the filter and recharge it with the model-specific amount of D.E.
Flow Diminishes
Accumulated dirt has increased flow resistance; compare pressure with the recorded clean starting pressure.
Air in Tank
Open the manual air relief before startup and close it only after a steady stream of water appears.

Replacement Parts

PartPart NumberDescription
Pressure Relief Valve Assembly550-6730Heavy-duty air-relief and gauge assembly.
Pressure Gauge830-4000SSGauge listed within the pressure-relief assembly.
Clamp Assembly550-6300Tank clamp assembly.
36 sq. ft. D.E. Grid818-3950Full grid for model 570-0036.
48 sq. ft. D.E. Grid818-3910Full grid for model 570-0048.
60 sq. ft. D.E. Grid818-3930Full grid for model 570-0060.
D.E. Manifold Assembly550-4200Manifold with air-relief assembly.
Main Body O-Ring805-0000Tank-body sealing O-ring.

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