WindowCleaners And Car Valeting Tanks

It depends on your round and vehicle size, but most van-based window cleaners run tanks between 400 and 800 litres, while smaller vans or car valeters often use 50 to 200 litre units. Larger tanks mean fewer refills but eat into payload and van space, so it's worth weighing daily water usage against vehicle capacity before choosing.

Baffles are internal moulded walls that stop water surging back and forth as the vehicle moves. Without them, a half-full tank can shift weight suddenly under braking or cornering, affecting handling and safety. For anyone regularly driving with part-loads, a baffled tank is genuinely worth having rather than a nice-to-have.

Yes — these tanks are made from semi-translucent medium-density polyethylene (MDPE) in a natural colour, so the water level is visible through the tank wall. This is handy for a quick visual check before heading out on a round, avoiding the guesswork of running dry mid-job.

If you're only using the water for window cleaning or vehicle valeting rather than anything consumed or used for food preparation, WRAS approval isn't a legal requirement. That said, if you're filling from a mains supply via a hosepipe, check your water company's byelaws on backflow prevention to avoid contaminating the wider network.

Underslung tanks mount beneath the vehicle chassis, freeing up load space inside the van for equipment, ladders or storage. Load-area tanks sit inside the vehicle and are generally easier to fit, remove and access for cleaning, but they take up usable floor space. Which suits you depends on your van layout and how much kit you carry alongside the water.

Yes, these MDPE baffled tanks are designed to integrate with water-fed pole setups, typically feeding a pump and filtration system before reaching the pole. Just make sure your outlet fittings match your pump and hose connections, or budget for adapters if not.