Spare parts filter Coral Neptune

Original spare parts for filter Coral Neptuno

Original spare parts for Coral Neptuno sand filter (injected polyester, transparent lid with threaded closure, round base): lid nut, lid gasket, lid key, complete lid with cap + gasket, manual drain + gasket, 50 mm wall bushing, complete drain, 1" 1/2 cup selector valve and pressure gauge. Important: the Neptune belongs to the screw cap family, together with QP Cyclone and QP Ruby, with which it shares the specific sealing parts.

The Coral Neptune filter and its screw cap family

The Coral Neptune is a sand filter for residential pools with several distinguishing features:

• Material: injected polyester, blue color, quality finish.
• Lid: transparent with threaded closure (without perimeter screws, unlike other ranges Coral).
• Base: mounted on round base for maximum stability.
• Design: innovative, with technology that provides high reliability with minimum maintenance.

Within the Coral / Productos QP ecosystem, the Neptune is NOT alone: it is part of a screw cap technical family that shares its specific parts with two siblings:

Screw cap family (Coral / QP)

• Coral Neptune (this model)
• QP Cyclone(QP Cyclone filter spare parts)
• QP Ruby(QP Ruby filter spare parts)

These three filters share all the specific parts of the threaded seal (cap nut, cap gasket, cap wrench, complete cap, manual purge). This is very useful for buyers: if a specific screw cap part is available for Cyclone or Ruby, it is equally suitable for the Neptune.

Rest of the range Coral / QP (other families)

The Neptune also shares many generic parts with the rest of the filters in the Coral / Productos QP catalog, even though they belong to different sealing families:

• Coral: Alaska, RPG 2.0, Series 92.
• Productos QPthe following filter families are available: Volcano, Beige, Red, Blue, Azur, Grana, Cyclone, Ruby.

The generic parts (wall bushing, drain, pressure gauge, cup selector valve) are common to the entire range Coral / QP.

Most requested parts and compatibilities

All parts are original Coral. Before ordering, visually identify if your filter has a screw cap with nut (Neptune, Cyclone, Ruby) or screw cap (rest of the range Coral / QP).

Specific parts screw cap (shared Neptune / Cyclone / Ruby)

These are the parts that differentiate the screw cap family from the rest of the Coral / QP filters. The cover gasket is the most rotating part (it gets crushed with repeated tightening year after year): it is usual to replace it every 4-7 seasons.

Generic parts (shared with ALL Coral / QP range)

This wide compatibility means that the availability of generic parts is excellent: the same parts are sold for 13 different filter models.

When to replace each part: actual symptoms

Maintenance that extends the life of your Neptune Coral

Regular flushing when the pressure gauge rises 0,3-0,5 bar above the clean pressure. Each filter has a normal working pressure (usually between 0.5 and 0.8 bar clean). When it rises 0.3-0.5 bar above, it is time to wash (valve on "Backwash" for 2-3 minutes, then "Rinse" for 30 seconds, back to "Filter"). Do not wait for pressures of 1.5-2 bar: it stresses the internal parts and the cover gasket.

Gentle opening/closing of the lid nut. The Neptune nut is designed for manual tightening with the cap wrench. Tighten firmly by hand as far as it will go, without additional tools. Forcing the seal with extra leverage deforms the cap gasket (the most rotating part) and may crack the nut thread or the filter neck.

Lightly lubricate the cover gasket with technical petroleum jelly. Once a year, apply a little petroleum jelly suitable for EPDM gaskets on the cover gasket before closing. It keeps the gasket elastic and reduces the force required for closing.

Visually clean the transparent lid. The transparency of the lid is one of the advantages of the Neptune: it allows you to see if the sand/glass is clean after washing. Keeping it free of scale aids inspection.

Replacement of sand/filter glass every 4-7 years. Silica sand has a useful life of 4-5 years; filter glass has a useful life of 6-8 years. After this time, the grains lose their retention capacity. Symptom: pressure does not drop to previous clean level after flushing.

Winter storage in frosty areas. Partially empty the filter body or leave the selector valve on "Winter" to prevent frozen water from cracking internal parts. Slightly loosening the cap nut (without removing it) reduces internal pressure during winterization.

Basic diagnosis of common problems

If the problem persists after replacing the candidate part, the technical service can evaluate the complete unit.