Waterco MultiCyclone Plus and Ultra Cartridge Pool Filter

At a Glance

The Waterco MultiCyclone Plus and Ultra are cartridge pool filters with a centrifugal pre-filter built in, in one compact housing. The cyclone stage takes roughly 80% of the dirt out first, so the cartridge needs cleaning far less often. The Plus has a 40 sq ft cartridge for pools up to 73,000 litres, the Ultra a 75 sq ft cartridge for in ground pools up to 108,000 or 134,000 litres. Pick the size to match your pipework, 40mm or 50mm.

Ideal for

• Plus: above ground and small to medium in ground pools, and tight equipment pads, as it stands upright on the pump
• Ultra: small to large in ground pools, or replacing a worn sand filter and wanting to stop backwashing
• Pools where the cartridge gets clogged too often, and anyone who wants a 15 litre flush rather than a sand backwash

Key Specs

• Cartridge capacity: extended up to 5 times by the cyclone stage
• Max pressure: 350 kPa (50 psi)
• Cleaning: open the 25mm purge valve to flush the sediment chamber, about 15 litres to waste
• Build: glass filled thermoplastic with a clear polycarbonate sediment chamber

Plus (C40 cartridge)

• MultiCyclone 12 Plus C40 (200376): 40mm / 1 1/2" unions, flow 40 to 152 L/min, 12 hydrocyclones
• MultiCyclone 16 Plus C40 (200377): 50mm / 2" unions, flow 50 to 152 L/min, 16 hydrocyclones
• Cartridge: 3.7 m2 (40 sq ft) pleated cartridge
• Pool size: up to 73,000 litres, per Waterco
• Both sizes share the same 152 L/min flow ceiling because the cartridge sets the limit, the 16 only gets bigger ports

Ultra (C75 cartridge)

• MultiCyclone 12 Ultra C75 (200378): 40mm / 1 1/2" unions, flow 40 to 225 L/min, pools up to 108,000 litres
• MultiCyclone 16 Ultra C75 (200379): 50mm / 2" unions, flow 50 to 280 L/min, pools up to 134,000 litres
• Cartridge: 6.9 m2 (75 sq ft) pleated cartridge
• Mounting: support it with the MultiCyclone support stand or a solid base

Why We Like It

Compact and tidy, and the 15 litre flush is a big saving on water against backwashing a sand filter. Remember the cartridge still needs an occasional clean, only far less often than without the cyclone stage.

• Plus: the 12 and the 16 flow the same maximum, so only choose the 16 if your pipework is 50mm and you want to avoid reducers.
• Ultra: the big cartridge version, and the one to pick over the Plus for anything bigger than a small pool. Size it by your pump flow: the 12 for pumps up to 225 L/min and the 16 for up to 280 L/min. For a very large pool or a commercial one, look at the MultiCyclone DUO 250.

Installation

Plumb it in after the pump, with the purge valve piped to waste. The Plus stands upright on the pump, or beside it on the optional support base. The Ultra should be supported on the MultiCyclone support stand or a solid base. Fit it yourself, or use a pool installer or plumber.

Warranty & Support

Plus and Ultra: 2 year warranty, plus 1 year on labour. Commercial installations are covered for 1 year. DIY installing? Warranty applies when the install follows the supplied install guide. Questions? Call 07 863 8064, real people, Waihi and Kopu stores, Mon to Fri.

Datasheets and manuals

• Plus brochure (PDF)
• Ultra brochure (PDF)
• Plus and Ultra manual (PDF)