Super Soaker Sneak Attack
Things at first seemed okay when removing the various screws on the Sneak Attack. However, upon attempting to separate the pump-grip, it appears that the rear of the pump-grip is snapped together with plastic tab-like connections. Since the pump grip is semi-tracked in a funny way, there is no way to separate the casing without removing the pump grip. I localized the stuck areas to two plastic rods, one on each inside of the pump grip attaching to the top of the pump-grip. While I could have forced the grip apart, that would likely have broken the plastic rods and I wasn't sure of the potential consequences not having those plastic rods may have. Thus, no luck in opening it so far.
Water Warriors Sting Ray
Started off removing the screws on this pistol-sized blaster, psyching myself up to pop off the nozzle and pump caps when, after loosening all the screws, the casing still felt remarkable fixed together. Normally, once all screws are loosened and/or removed, blaster casings should be able to split apart a bit even if a pump or nozzle cap is still in place. For the Sting Ray, virtually nothing budged. Looking a little closer at the seam, particularly along the bottom, I found a long bead of glue sealing the casing together. This is one water blaster that just is not meant to be easily opened for repairs. I opted against forcing the casing apart since, with that amount glued, the plastic casing would likely have been significantly damaged in the process.
Water Warriors Hammerhead
All seemed to at first be going well when attempting to open this blaster. Once all the screws were loosen, parts of the casing began to split from the other. I also managed to slide off the pump cap without too much trouble. However, the nozzle cap has an odd shape and, despite initial prying, did not budge. Furthermore, the Hammerhead also features a rear-side cap that also holds the sides of the casing together. Attempts to pry off the rear-side cap met in failure. After multiple attempts, I can only conclude that the rear cap on the model tested is glued on quite strongly, thus cannot be easily removed.
---------------------------------
All-in-all, as I prefer keeping my water blasters stock, any blaster that requires a lot of effort to open when it still works properly I opt to leave closed. Of course, should any of these blasters require repair in the future, I'd be willing to sacrifice aspects of their aesthetics of it meant being able to correct the problem. Always interesting, of course, to see how various soakers are built. Of course, here's to hoping no one here has to open up any of their own blasters for repair and only for fun/exploration if desired.
Soak on!

