Cat water fountains · Choose by your needs
If you require a plastic drinking surface and confirmed dishwasher permission, compare PetSafe Viva 140 oz with its named top-rack-safe tray parts and the open-bowl PetSafe Oasys configurations. Both are outlet-powered; the cleaning permission applies to non-electrical plastic components, not the pump or adapter. Check the exact variant and manual before loading any part.
Comparison updated 29 October 2026.
| Model | Exact configuration | Permitted drinking-surface parts | Limit that changes cleaning |
|---|---|---|---|
| PetSafe Viva 140 oz Plastic PWW00-17922 140 oz plastic | PetSafe Viva 140 oz Plastic PWW00-17922 | Plastic bowl, pump housing and tray parts have top-rack permission | Pump requires separate care; keep adapter out of the dishwasher. |
| PetSafe Oasys 128 oz PWW00-16777 128 oz | PetSafe Oasys 128 oz PWW00-16777 | Open plastic bowl; non-electrical plastic parts have top-rack permission | Keep pump and adapter out; maintain water above the pump minimum. |
Choose it when: The exact 140 oz U.S. Viva configuration has a plastic drinking surface and cleaning instructions that permit named non-electrical parts in the top rack.
The limit: The permission is part-specific; disassemble and clean the pump separately, and keep the electrical adapter out of the machine. The nominal 140 oz label is not a refill interval.
Choose it when: The exact 128 oz Oasys configuration has a plastic open drinking bowl and documented dishwasher permission for non-electrical plastic fountain parts.
The limit: The pump must be opened and cleaned separately, and the pump plus adapter are not dishwasher parts. An open bowl that retains water does not provide battery backup.
A plastic surface does not mean the entire fountain is dishwasher-safe. The exact manuals distinguish the bowl or tray from the pump, filters, connectors and adapter. Use only the permitted parts and follow the pump-cleaning steps for the exact model.
The broader plastic answer includes fountains with no confirmed dishwasher permission. This page keeps the washing requirement selected; compare the complete linked result list for other exact plastic variants and check their individual model codes and care instructions.
No. The exact instructions require opening and hand-cleaning the pump. Dishwasher permission applies to non-electrical plastic parts; keep the pump and adapter out.
No. Material and cleaning permission are separate facts. A plastic surface is not enough unless the exact model documentation permits the specified drinking part in a dishwasher.
No. Nominal capacity does not establish household use or a time between checks. Monitor the water and follow the manufacturer's refill routine.
