The hippogriff can hear the pony’s voice from inside “Coming!” and a few seconds later the door opens “Oh. Hey there Vindicar.”
Birdpony does as he’s told, and starts shaking the armor underwater, making quite a lot of noise in the process. It quickly proves to be a tiring thing to do while balancing on hind legs, so Vindicar has to aid himself with wings, spreading them wide to keep balance.
"Just… like… that…"
"Alright, alright, that’s enough, if you were to shake it like that for like half an hour non-stop then maaaaybe it would clean up fully. Also, a note, use something of lower height, giving you a chance to sit while doing this."
"I’ll take that into account," griffpony smiles, wiping off the sweat from his forehead before taking the armor out of the tank. "What comes next?"
“Well, next comes the shaking off part. Unfold the armor and then shake it as best as you can, as if you were with some cloth. Also, this is something that should also be done before you put the armor in the water, but since you flew there and such, I thought it would be enough.”