With WhiteWater West having been named as the supplier of the park’s slides, it might be worth taking a look at their range of products:
https://www.whitewaterwest.com/en/products/water-slides/
By the looks of the WhiteWater West website and the synopsis of the individual slides described above, I’d take a stab at the newly added adult slides being a
WhiteWater West Parallel Pursuit (the body slide version rather than the mat slide version), a
WhiteWater West Family Raft Slide, and a
WhiteWater West Master Blaster. The Elephant Slides sound as though they will be a duo of
WhiteWater West Mini Body Slides.
For those interested, the throughput of the Parallel Pursuit is
360pph, the throughput of the Family Raft Slide can be between
540pph and
1,080pph dependent on whether 3, 4 or 6 rider rafts are chosen, and the throughput of the Master Blaster can range between
360pph and
1,080pph dependent on whether 2, 3, 4 or 6 rider rafts are chosen. The Mini Body Slide has an individual throughput of
240pph, so the duo that Chessington has gone for should have a combined throughput of
480pph.
It sounds as though Chessington has gone for the lowest throughput version of all the tube/raft slides, as the family raft slide will seat 3 and the water coaster will seat 2 according to the attraction list shown above, but I’m sure this won’t be an issue with the likely limited visitor figures, and these sound like solid choices nonetheless!