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Deionised Pure Water Information, Sales, & Pricing



Tap water in the East Midlands is quite 'hard' because of dissolved minerals and additives such as calcium, registering between 350-400 parts per million (PPM). These contaminants reduce the effectiveness of cleaning chemicals (Have you ever been to Greece and found your shampoo or shower gel suddenly doesn't know how to foam?) It also causes unsightly water spots when water evaporates, leaving behind a ring of mineral deposits. In extreme cases, these water spots can etch, or bite into your modern water-based vehicle paint, harming its appearance and residual value, and requiring machine polishing or worse... sanding and painting, to rectify the damage.


We exclusively use Deionised Pure Water, at no extra cost to the client, for all our services. This water is multiple-stage filtered to remove mineral deposits, limescale and calcium, and is delivered to us at ZERO PPM. This brings several benefits for both the client and our business, with the added bonus of helping the environment.  


Client Benefits:

  • Blemish-free vehicle appearance due to no spotting left behind from water evaporation
  • Reduced incidence and visibility of 'tramlines' left behind by drips from water traps
  • Increased effectiveness of detailing chemicals resulting in an improved finish
  • Glowing paintwork finish, even on unprotected paint
  • Huge improvement in wax durability due to reduced detrimental effects of hard water
  • Time-saving effects of procedural efficiencies provided by pure water use


Business Benefits:

  • Reduced chemical dilution ratios due to improved effectiveness reduce costs
  • Ease of vehicle cleaning in hot or sunny locations without the need to re-wet the vehicle
  • An affordable solution to increased vehicle appearance results
  • Less rushing around on hot days means less exhaustion, and a healthier workforce


Environmental Benefits:

  • Less need to re-wet vehicles to avoid water-spots results in less water used
  • Obviously this contributes to less pressure-washer use, meaning less energy used too
  • Tailoring our water usage reduces our vehicle weight, contributing to better efficiency
  • Scaled-down chemical dilution ratios result in less contamination from run-off*


*All chemicals used by Onsite Car Detailing are biodegradable and used within manufacturer-recommended guidelines, including care of environmental impact. We never pour wash bucket surplus directly into drainage systems.

Pure Water Sales & Pricing

Suitable for use by car enthusiasts who prefer to maintain their vehicle's appearance themselves, and for many other usage cases:


Home iron/ steamer use

Wet-battery maintenance and top-up

Home window washing

Specialist pond and fish-tank set-ups


We can deliver Pure Deionised Water to your address. Choose from 25-litre drums* on a sale-and-return basis, or specific amounts on a free-flow** delivery between 50 and 300 litres per delivery, all at reasonable prices compared to retail shops:


25-Litre drum* deliveries:


25-litre drum = Price coming soon

2 x 25-litre drum = Price coming soon


Free-flow** deliveries (minimum delivery 50 litres):


50 - 100 litres = 50 pence per litre

100 - 200 litres = 45 pence per litre

200 - 300 litres = 35 pence per litre


Use the contact button below to get in touch and discuss your requirements.


*25-litre drums carry a £10 cash deposit per drum, refunded on our collection of the empty, reusable drum


**Free-flow deliveries are dispensed into 25-litre drums on site, which must be emptied into your own container immediately

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