The Nerf Super Soaker Mini Dunk-Fill is a trigger-action water blaster released in 2025. The "Dunk-Fill" name is new for 2025 and appears on a number of Nerf Super Soaker products including this item as well as the Nerf Super Soaker Dunk-Fill and Nerf Super Soaker Mega Dunk-Fill. As the name implies, these water blasters are meant to be dunked into pools of water in order to refill their reservoirs.

The Packaging .:

The Nerf Super Soaker Mini Dunk-Fill has simple, clean packaging. The blaster is secured onto the open-faced box via a couple of plastic ties. This packaging can be hung via its peg hole or it can stand on its own on a shelf. The front panel's illustration shows a Nerf Super Soaker Mini Dunk-Fill being 'dunked' into a bucket of water for filling.

On the back panel, the two-step process of dunk-to-fill, then pull-trigger-to-soak is presented both in text and images. At the bottom of the panel, the capacity of the reservoir is listed as 3.4 fl.oz. (101mL). (Note: we measured 100mL at iSoaker.com, but accept that our measurement may be off by 1mL; more on that to come.)

Design .:
The Nerf Super Soaker Mini Dunk-Fill has a clean, functional design with a nice use of blue for the body, clear green for the reservoir, and blaze orange for the nozzle, trigger, sight, and fill-valve. The top of the water blaster appears to have a tactical rail, but we have not confirmed whether other Nerf guns attachment will actually fit.

Build and Ergonomics .:
Like most Nerf blasters, the general build quality of the Nerf Super Soaker Mini Dunk-Fill is good. The plastic seems to be of decent quality. Texturing on the grip and around the trigger area allow the blaster to be help securely, even when one's hands are wet. The grip is a decent size and, given that it is fully open, can accomodate even larger hands. Due to the forward and down positioning of the reservoir, the Nerf Super Soaker Mini Dunk-Fill does feel slightly front-heavy when filled. However, this weight is likely not particularly unwieldy for most adults to use this blaster single-handedly, though some smaller children may end up preferring to use both hands to hold this blaster. Thankfully, the reservoir can act as a secondary grip point, cupping the base of the reservoir where the slight textured-design provides a natural place to hold.

Overall Performance .:

Stream performance of the Nerf Super Soaker Mini Dunk-Fill feels to be on par with most other typical trigger-based water blasters. Each pull of the trigger unleashes less than 1mL of water per full pull. As such, with a completely filled reservoir, one would expect to be able to fire off over 130 shots before needing to refill (and no, we did not run that test).

Water blasting performance aside, what we did test was how well the "Dunk-Fill" system works. By plunging the reservoir into a pool of water, the reservoir fill-valve is meant to open and allow water into the tank. If one looks at the picture of the Nerf Super Soaker Mini Dunk-Fill above on the left, you should see the reservoir submerged in a container of water. If you look more closely at the picture, you will notice that the water level inside the reservoir is lower than that outside the reservoir. This difference is not because the image was taken while the reservoir was fillin; rather, the reservoir would stop filling typically between 50%-75% full when the "Dunk-Fill" valve decides to close. One can manually push the valve open underwater to allow filling to continue, but doing so feels a bit bothersome. First, I wondered whether the reservoir was trapping air inside at its top such that the pressure build up during the filling process resulted in the valve closing early.

Trapped air was not the problem. If you look closely at the top of the reservoir near the front of the blaster, there is a grid network of holes that should readily allow any air to escape through the casing as water enters from below. Thus, it simply seems that the low force spring used to keep the valve generally closed after filling produces enough force to limit the fill capacity of the Nerf Super Soaker Mini Dunk-Fill to ~60% full on average unless one manually depresses the valve to permit complete filling. I also tried inverting the blaster and filling from the tap. Doing this does NOT work. As already noted, the grid of holes is rather effective at allowing water to exit through the top. Water then drains out through the hole on the very top of the blaster or through the two holes at the bottom of the grip area. In either case, holding this blaster upside-down simply drains the reservoir into the blaster's case. This also means that if one is running or not paying attention and allow the blaster to point too far downwards or become inverted, one will end up losing one's reservoir water to the case and eventually out through one of the drainage holes.

Overall .:

In the end, the Nerf Super Soaker Mini Dunk-Fill is a well-built water blaster with a novel refill method with limited utility. Due to the value system and vent holes present to allow the "dunk-fill" feature to work, the Nerf Super Soaker Mini Dunk-Fill can only be refilled by dunking the reservoir into a larger pool of water. Even then, simply dunking does not typically fully fill the reservoir; for more complete fills, one must depress the fill-valve while the reservoir is submerged to allow more water in. Further, one must be careful not to invert or point this blaster too downwards, otherwise water will drain through the vent holes at the top of the reservoir. (This also means that this is probably NOT a good water blaster to carry in one's pockets unless one's pocket is large enought to keep the blaster horizontal). In terms of stream performance, being trigger based, the Nerf Super Soaker Mini Dunk-Fill performs more-or-less on par with most other trigger-based water blasters. Likely best of small casual skirmishes, users of the Nerf Super soaker Mini Dunk-Fill should remain wary of pretty much any other water blaster out there, plus one will need access to a large enough and deep enough pool of water from which to refill from.

Pros

Sturdy; comfortable to hold; easy to use; quick to fill (if a pool of water is available)

Cons

Needs a large enough and deep enough pool of water for refilling (cannot be easily filled via tap; akward to use a hose); dunk-filling alone does not generally completely fill the reservoir (only get ~50%-75% full if dunking alone; must depress the fill valve while the reservoir is submerged to completely fill it); trigger-based pump means limited output and range; slightly forward-heavy when filled

Images

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Related Content .:

 Product Listing Page | Predicting Pump-Action Performance

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