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Swiftech Maelstrom 5 Dual Bay Standalone Reservoir for MPC350 355 or 35X Pump G1/4

Final sale. This product cannot be exchanged. No returns or refunds. RMA ONLY.
Water Cooling items may add an additional 1-3 days processing time to your order.
Please read our Terms & Conditions of sale on Water cooling equipment.

The Maelstrom 5 1/4" Dual Bay Reservoir is an advanced, versatile, and elegant coolant storage & recirculation system capable of operating either as a standalone unit, or with a single or a dual MCP35 class pump (MCP350, 355 or 35x).
Swiftech Maelstrom 5 Dual Bay Standalone Reservoir for MPC350 355 or 35X Pump G1/4 - 1
Actual product may not be exactly as shown.
Swiftech Maelstrom 5 Dual Bay Standalone Reservoir for MPC350 355 or 35X Pump G1/4 - 75331_l.jpg Swiftech Maelstrom 5 Dual Bay Standalone Reservoir for MPC350 355 or 35X Pump G1/4 - 75331_1.jpg Customer Photos (0)
Reg. Price: $99.99  CAD
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Part #: Maelstrom

SKU: 75331
Shipping Weight: 1 lbs
Shipping estimate: $5.99*
*Via NCIX selected courier.

Customer Reviews of Swiftech Maelstrom

Product reviews on NCIX.com are screened for relevance and inappropriate content. Reviews may contain inaccurate information about the product. If there is a discrepancy, please use the Flag this Review link located beside each review. Reviews are not an endorsement expressed by NCIX.com, but opinions from customers based on their own experience with a product. We do not recommend you make purchasing decisions based on facts or opinions expressed regarding Swiftech Maelstrom reviews.
Experience: 2 Weeks


Temp monitor works great
Holds plenty of fluid
Dont recommend using two of the three return holes
The foam bubble stopper is a joke. bubbles get in there and it floats to the top of your water even when you bend the edges of the metal screen below it to catch and hook into it.
This item is really nice for a good price. If you pair this with a pump that can push a lot of fluid you may run into issues depending on what return line you use. My suggestion is to use the port directly in line with the temperature sensor to reduce the vortex that pumps cause giving your fluid more time to settle down before going off to your pump to get kicked around again. I'm using a 655 variable and all speeds up to 3/5 work amazing. 4/5 starts to cause enough water velocity to break up waterbubbles on the top of the case causing mini bubbles. 5/5 causes a huge torrent of water that decimates bubbles into micro bubbles and sucks them into the tubing. Bubble preventer usually gets stuck sideways along the edge so it doesn't prevent air going into the system. My workaround was to use the foam from a d5 Xtop res combo and shove it in on top of the included foam. No bubbles get past now. This is all on the middle of the 3 return ports..

Experience: 99 Days


quality construction
none so far
good build quality. unusal design has some quirks.read up some reviews before you buy

Experience: 3 Weeks


well built, great looking, easy install, temp gauge
none to speak of
used clear water but would look even more awesome with colored water

Product Videos [ Edit ]

Features [ Edit | History ]


Instant visualization of coolant level, cool factor:

Fits in two 5 1/4" Bays with or without the pump(s) installed
The image to the left shows the Maelstrom bay reservoir filled with various coolant colors.


Versatility, upgradability, extreme performance capability:

Modular design
The Maelstrom operates either in standalone mode, or with one or two built-in Swiftech MCP35x series pumps (MCP350, 355, or PWM controlled 35X) using an MCP35X-H (for single pump) or an MCP35X2-H (for dual pump) housing - All options are factory pre-installed.

Instant visualization of critical temperature data (*see notes below)

Coolant temperature display (in degrees Celsius)
Precise coolant level monitoring

Graduated level
Convenience & safety: Easy filling, no spills

Extra large fill-port opening with finger-grip ribs on the chrome plated brass cap

Reliable operations

Anti-vortex/anti-bubbles system
A tube surrounding the pump inlet features various size openings in its wall and prevents the formation of a vortex, and air entrainment in the loop
An open-cell sponge further traps micro-bubbles before their can re-enter the inlet
Performance, versatile loop configuration

Up to 3 return lines can be installed for loop parallelization.
Shown here with 3/4" compression fittings to illustrate compatibility
Cosmetic appeal: elegant and robust

Solid black-anodized aluminum face-plate with robust brass inserts for invisible fixation

Cosmetic appeal: light up the coolant, cool factor

Two pre-drilled holes for installing 3mm diodes 
(1 UV-LED is included)
Compatibility with all existing G1/4 fittings (compression, etc..)

G1/4 port standard
Included 1/2" hose barbs & hose clamps

Bonus: reduced cost of ownership (not included by our competitors)


* Notes regarding coolant temperature data:

When assessing various component temperatures in a conventional (non-refrigerated) liquid cooling system, ambient air is the primary baseline from which everything else derives, i.e. no heat-generating component can ever be cooler than, or equal to ambient. The second temperature data that can also be considered as a baseline is the coolant temperature: it reflects the sum of the ambient air temperature plus the temperature resulting from the component(s) heat load multiplied by the thermal resistance factor (in layman terms the heat dissipation efficiency) of the entire loop.

Thus, monitoring the coolant temperature in a liquid cooling system is essential at two levels: 1/ as an absolute value, you can monitor the cooling system health and be visually alerted of potential issues (overheating), and 2/ as a relative value compared to that of the ambient air, it provides a meaningful indicator of the system thermal performance and in particular its ability to dissipate the heat generated by the components under load. In this respect, the following table may provide a general guideline to assess the thermal performance of your liquid cooling system; please note that audible noise considerations will dramatically affect the qualifiers listed below. In effect, the lower the noise requirements are relative to the heat load, and the higher the thermal efficiency demand will be placed upon the system.

Coolant Temperature Minus Ambient Air temperature

System qualification

Less than 5°C Extreme system
Comprised between 5°C and 10°C Extreme to High-end system
Comprised between 10°C and 20°C High-end to Mid-range system
Comprised between 20°C and 30°C Mid-range to Entry-level system

Specifications [ Edit | History ]

Maelstrom Dual bay Reservoir (Standalone)
  • Face plate: Black anodized aluminum
  • Reservoir: Clear Acetal
  • Brackets: Nickel plated steel
  • Fill cap: chrome plated brass
  • Fittings: black painted (electrophoresis) brass
  • Pump inlet: Black POM

  • 16 Oz (453g)
Coolant Capacity:
  • 234cm3 (7.9 fl oz)
Temperature controller
  • Molex 4-Pin power connector
  • Operating voltage: 5v
  • 3mm - UV
  • 3-Pin connector

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Reviews from the Web

Below are reviews found on other web sites for this product submitted by customers.

URL: http://www.tweaktown.com/reviews/4992/swiftech_maelstrom_standalone_ba
Comment: very good review
Posted by: ross_w @05/04/13
Submit a review link   |   Latest 30 reviews

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