Trigger Systems

Platinum Sump 39 Aquarium Sump (OPEN BOX)

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Trigger Systems has been testing its Platinum series for over a year and a half to make sure they have a solid, proven design. This series includes an automated, continuous mechanical filtration that replaces filter socks. Trigger has tested several different designs and found that having the fleece roll system sized to the sump is by far the most efficient. Their fleece rolls have been lasting 4 to over 6 months, unlike filter socks that need to be changed every few days. Every user so far has reported improved water quality, with some stating algae is no longer a problem. Trigger Systems Platinum 39 Sump uses a 10" wide x 150-foot long fleece roll that is included. 

  • Magnetic Sensor Slider
  • Moveable and Removable Middle Partition wall
  • Input Plate Gasket Reduces Salt Creep
  • Four Dosing Tube Quick Connects
  • Polycarbonate Lid Over Fleece Chamber
  • Adjustable Water Level & Self Adjusting Top Platform
  • Laser Engraved Water Markings
  • Additional 1" Input Fitting for Modularity


This design will automatically roll new fleece to be filtered as soon as the fleece in the sump becomes dirty. Trigger Systems created a diamond pattern for the water to flow through which follows the gem theme, but purposely uses the most surface area on the fleece. Maximizing surface area is key in this design to allow the fleece to last longer and to allow for more water flow. The Platinum sumps have tested up to 3000 gph without any flow issues.


There was no expense on the Platinum line. Using a high torque motor which is critical when pulling the fleece in high flow applications and not burning up. They added a redundant shut off sensor to ensure the fleece roll stops when the return pump shuts off. There are wire channels that hide the wires. On all models except the cube, the middle wall that separates the skimmer and refugium sections is move-able and removable allowing you to ensure your skimmer fits and maximizing the area for the refugium. Or you can remove and have one large chamber. A few more details and specs are listed below.



Dimensions - 39" L x 16" W x 15" H

Fleece Chamber Max Height - 22"

Fleece Roll - 10" W x 150 Feet Long

Middle Section - 22.75" x 15.5"

Return Pump Section - 6" x 12.5"

Skimmer Water Level - 7" x 9.5"

Total Water Volume - 40 Gallons

Drain Input Fitting - 2x 1" Drain Input Fittings plus 1 extra 1" fitting


What's Included?

1x Trigger Platinum 39 Sump

2x Trigger Fleece Roll


Note: The time the fleece roll lasts and how much water flow can be pushed through may vary and depends on the return pump flow rate and how dirty the water is (bioload). It is expected that the first roll will be used up faster as it polishes the water.

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Product Questions

What size tank is this recommended for . I’m looking for one for a 90 to 120 gal. Reef med to low bio load
Question by: David Arnold on Jan 4, 2024, 6:54 PM
Hey there,
Thank you for reaching out to us. While there isn't an exact size requirement for sumps, it's usually recommended to shoot for about 20% of display volume. The largest consideration should really be that the sump have enough volume to hold the runoff water from the display which will drain down when the return pump is turned off, and also to ensure the size of the sump is large enough for the desired equipment. Please let me know if you need anything further.
Answer by: Thomas Wofle (BRS Staff) on Feb 1, 2024, 10:27 AM