This is the question the whole product is designed around. The valve seats against a multi-port silica gel ring, and the lock key holds it closed mechanically — not just by friction. Flip the lock before it goes in the bag and it travels next to your phone, sideways or upside down. The one thing that will leak it: leaving the lock open with the trough full.

You’ve read correctly — a failed spring valve is the most common complaint in this entire category, and we won’t pretend otherwise. Two things matter. Press, don’t punch: the valve needs light pressure, and forcing it is what kills cheap ones. And rinse the valve after anything sugary or salty, because residue gums the spring. If the button stops seating, our replacement policy covers the unit.

Honestly: it’s a moulded shell over a PET reservoir, not machined steel. It takes the drops a normal walk produces — off a bench, out of a car door, onto grass or pavement — and keeps sealing. It is not built to be thrown down concrete steps or frozen solid. If you need something you can drive over, buy stainless. If you need something you’ll actually carry every day, buy this.

No. The chambers are physically independent and separately sealed — water travels up through the valve into the trough, never into the dry store. Kibble, training treats, freeze-dried, all fine. It only gets damp if you load food into a trough you haven’t dried after a drink.

The trough is deep and wide rather than flat, so she laps instead of licking a spout and her face stays dry — which is where most refusals come from. Give it three walks. Press a little out so she sees it move, let her approach it herself, and don’t hold it to her mouth. Almost every dog takes it by the third try.

It comes apart into four pieces: lid, dry store, collar, reservoir. Rinse the trough and valve after every walk, full wash weekly on the top rack of the dishwasher, and let the gasket air-dry before reassembly — heat is what deforms seals, so no boiling or sanitising cycles. Orders placed before our daily cut-off are dispatched the next working day with tracked delivery, and your tracking number is emailed the moment the label is created.