The Two-Tank Fountain Built for Big Dogs

TrueSpring AquaMax

Clean Water. Healthier Dog.

5-star rated by dog parents
  • ✓
    A sealed reserve of fresh water.6L kept away from slobber and hair.
  • ✓
    Filtered 24/7.Pulls out hair, crumbs and slobber all day.
  • ✓
    Water that never sits still.No still bowl for slime to grow in.
$169.99$240.00Save $70
Free Express US Shipping
1-Year Warranty + Free Replacement
Big-Dog Approved: 11L, 2 Tanks
How the two tanks work
A sealed 6L reserve sits beside a 5L drinking basin. As your dog drinks, the reserve feeds fresh water into the basin automatically. A quiet pump keeps the basin water moving through a multi-layer filter, so it doesn't sit still and stale.
What's in the box
  • TrueSpring AquaMax fountain (basin, 6L reserve tank, lid)
  • Pump and multi-layer filter
  • Cleaning brush
  • Power cable and quick-start guide
Cleaning & care
It comes apart in seconds with no tools. Rinse the basin every couple of weeks and swap the filter every 1–2 months, or sooner with more than one dog.
Shipping & warranty
Free express shipping across the US. Every AquaMax comes with a 1-year warranty: if it's faulty or stops working, we replace it free.

The Problem

That Pink Slime in Your Dog's Bowl?

Your dog drinks it every single lap.

Pink slime ring inside a still dog bowl

Pink slime can form in a still bowl within days.

1. The problem

That pink film is bacterial biofilm, often Serratia marcescens. It feeds on saliva and food left in still water, and washing the bowl only buys you a day or two.

Saliva dripping from a dog back into its water bowl

Not your fault. Bowls were never built for this.

2. Why it happens

Every lap drips saliva, hair and crumbs back into the same water your dog drinks next. Nothing takes them out, so the bacteria keep feeding.

Two large dogs drinking from the TrueSpring AquaMax

AquaMax keeps clean water sealed away.

3. The AquaMax fix

Fresh water waits in a sealed 6L tank and only flows into the bowl as your dog drinks. The bowl water never stops moving through a filter that pulls out hair, crumbs and slobber.

The Reserve Source Design

Two Tanks. One Job: Fresher Water.

The ultimate dog water fountain. Designed with their health in mind.

Most fountains are one open tank. Every drop sits where your dog drinks. The AquaMax splits the water in two, keeping a sealed 6L reserve untouched until the bowl needs it.

1

6L sealed reserve

Fresh water waits in a closed tank, away from your dog's mouth, hair and slobber.

2

Automatic top-up

As your dog drinks, the reserve feeds the basin, so the water level stays steady all day.

3

Always moving, always filtered

A whisper-quiet pump circulates the basin water through a multi-layer filter that catches hair and debris.

Cutaway diagram: sealed 6L reserve tops up the 5L basin, which circulates through a multi-layer filter

Life With AquaMax

Under 5 Minutes a Week.

That's all it takes to give a big dog fresh, filtered water every single day.

With an ordinary bowl

  • ✕Refill 2–3 times a day
  • ✕Scrub off slime every few days
  • ✕Empty bowl by the time you're home
→

With TrueSpring AquaMax

  • ✓Top up every few days
  • ✓Quick rinse every 2 weeks
  • ✓Fresh water waiting all day
Dog drinking from the AquaMaxEvery day

Nothing.

Your dog drinks. The reserve keeps the bowl topped up on its own.

Pouring water into the reserve tankEvery few days

Top up

Pour fresh water into the reserve tank. Takes about 30 seconds.

Rinsing the basin under the tapEvery 2 weeks

Quick rinse

Lift out the basin and rinse it under the tap. No tools.

Swapping in a fresh filterEvery 1–2 months

Fresh filter

Swap in a new filter to keep the water tasting clean.

Filling the AquaMax reserve tank

11 Litres

Fill It Up. Forget It for Days.

Big dogs can drink over a litre a day. AquaMax holds enough to keep up while you're out.

  • ✓Level markings show when to top up
  • ✓Pour straight in, no lifting
  • ✓Covers long workdays and weekends
AquaMax parts laid out for cleaning

Easy Care

Apart in Seconds. Clean in Minutes.

Every part lifts out by hand. No clips, no tools, no hidden corners.

  • ✓Wide basin, easy to sponge clean
  • ✓Cleaning brush included
  • ✓BPA-free materials

Made for Your Dog

Sound Like Your House?

Giant breed?

Built for the big drinkers.

Labs, Shepherds, Bernese, Danes. The deep 5L basin is sized for a big head and a big tongue, and holds back the splash zone.

More than one dog?

One fountain, the whole pack.

11 litres means two or three dogs can share without the bowl running dry mid-afternoon.

The toilet drinker?

Give them something better to chase.

Dogs that drink from toilets, puddles and taps are often looking for moving water. AquaMax gives them a clean source that keeps flowing.

Older dog or a health watcher?

Easy water helps them drink.

If your vet has asked you to keep your dog drinking, fresh, moving water within easy reach makes it simple. Always follow your vet's advice.

Us vs. Them

AquaMax vs. Typical Fountains

AquaMaxTypical
Architecture✓Split-tank✕Single tank
Pink slime in days✓Slowed✕Yes, 3–7 days
Water their mouth touches✓Basin only✕All of it
Capacity✓11 litres✕2–3 litres
Built for 50 lb+ dogs✓Yes✕Rarely
Warranty✓1 year✕Varies

Questions

Frequently Asked Questions

How big is it?
The AquaMax holds 11 litres in total: a 5L drinking basin and a 6L sealed reserve. It's designed to sit against a wall in a kitchen, hallway or mudroom.
Is it noisy?
The pump is whisper-quiet. Most owners forget it's running.
How often do I change the filter?
Every 1–2 months, or closer to monthly if you have more than one dog or a heavy shedder.
Will my dog actually use it?
Most dogs take to moving water quickly. Some cautious dogs need a few days. Put it next to their old bowl at first, then take the old bowl away once they're drinking from the AquaMax.
Is it safe for puppies and small dogs too?
Yes. It's built for big dogs, but any dog that can reach the basin can drink from it. It's a great fit for homes with a mix of sizes.
What's the warranty?
Every AquaMax comes with a 1-year warranty. If it's faulty or stops working, contact us and we'll replace it free.

Customer Reviews

★★★★★
Sarah M.Nov 10, 2026

My golden retriever gets food and slobber in his water every time he drinks. I used to just top it up without thinking. Seeing how quickly the bowl gets dirty made me want something with a filter. I still wash everything, obviously, but I'm much happier with this setup.

★★★★★
Jennifer L.Nov 9, 2026

We have two labs and they drink a ridiculous amount of water lol. I was filling their old bowl constantly. The reservoir has made a big difference, especially on busy mornings.

★★★★★
Michael R.Nov 8, 2026

Wasn't sure if a dog water fountain was worth the money but it's been good so far. My German Shepherd took to it straight away and I like that the water circulates through a filter.

★★★★★
Rebecca H.Nov 6, 2026

We have a husky, a lab and a little terrier. I genuinely thought the terrier would be scared of it but she was the first one to try it 😂 All three use it now. Really pleased.

★★★★★
David P.Nov 5, 2026

Honestly just a much better setup than the old bowl. Holds more water, filters it and doesn't need topping up every couple of hours.

★★★★★
Michelle K.Nov 4, 2026

Anyone with a big dog knows what I mean. They eat, take a drink and suddenly there's bits of food floating everywhere. That's what made me start looking at filtered fountains. This one has been a good addition to our kitchen.

Goldendoodle drinking from the AquaMax

Our Promise

Built to Last. Backed for a Year.

We stand behind every AquaMax. If something goes wrong, you shouldn't have to fight for a fix.

✓1-year warranty on every fountain
✓Faulty or stops working? We replace it free
✓Real people answering support, not a bot
Get Your AquaMax