When to pressure wash – and when not to pressure wash?

September 08, 2023 4 Comments

When to pressure wash – and when not to pressure wash?

Although it will instantly clean most hard surfaces – and looks impressive at first – pressure washing (aka power washing or jet washing) leaves behind algae spores that rapidly recolonise.

This means the cleaned property will be back to square one in a very short time, with the same infestation and subsequent staining it suffered from before.

In addition, repeated high-pressure washing damages surfaces and increases the rate at which they would degrade due to natural weathering. It can increase their porosity and thus make them even more susceptible to recolonisation.


That said, in some circumstances a one-off power wash followed up with a treatment of Benz Bio Cleanze can be the most effective approach. It gives your customer the "instantly clean" effect most people want, while also killing the spores.

This means that the majority of horizontal surfaces will stay clean for 1-2 years or even longer (depending on the local environment, nature of the surface and how well the customer keeps their property free from organic material).

Power washing can become a thing of the past

Even when power washing is indicated as the most effective initial approach, by following up with regular treatments of Bio Cleanze that surface will rarely need to be power washed again.

As a contractor it's an excellent idea to keep a log of when you treated each property. Then get in touch with the customer every 1-2 years to give the surface a "Clean & Maintain" maintenance treatment.

Your customers will appreciate you and your work because their surfaces will always be clean. This is similar to the principle of regular window cleaning and can lead to a lot of referrals, giving you an abundance of repeat business.

We hope this information is helpful and sincerely wish you great success in your soft washing business,

Benz Team

Click here to get more practical soft washing how-to tips

How to find answers to most soft washing questions: Simply enter a relevant "keyword" or short phrase – e.g. keyword for the above link = "how to" – into our in-site Search Engine (magnifying glass icon on the main menu).

Click here to download our Product Documentation Pack (includes Application & Dilution guides, SDS, PDS, RAMS, PPE & Mask info, COSSH, sample Contract and more)

Order Benz Softwash chemicals & equipment online or by phone:

GB (England, Scotland, Wales)

Phone: 0800 70 74 222 

Online: www.benzsoftwash.co.uk

Ireland and other countries

Phone: 00353 214 622 978

Online: www.benzsoftwash.com

Lines open Monday - Friday, 9am – 5pm

Please note: The above numbers are for orders only (click here for tech support)

PS: Click here to set up your "Clean & Maintain" programme
. After completing an initial soft wash treatment, put your customer on a "Clean & Maintain" ongoing maintenance programme. Your customers will enjoy a permanently clean property and you will enjoy a steady stream of repeat business.

This is clearly a win-win arrangement for you and your customers.


Click here to explore the extensive range of Benz softwash cleaning chemicals & equipment

Benz Softwash Bio Cleanze DDAC biocide & Benz Softwash Lightning Cleanze SH sodium hypochlorite biocide

4 Responses


September 04, 2017

HI Paul, and thanks for your enquiry.

Our recommended equipment suppliers will answer all your questions re soft washing equipment. Unfortunately I cannot add a live link to a blog comment – but copy and paste this url into your browser, then scroll to the foot of the page and you will find their full contact details:


They are very friendly, helpful and knowledgeable and will help you decide on the best equipment for your current needs.



Paul Pugsley
Paul Pugsley

August 31, 2017

Hi guys I’ve been operating driverevive for 10 years and I’ve always had a big dip over the winter months, with your help I’m
Looking to roll
Out softwashing Tommy existing customers and hopefully by adapting my very expensive already owned powerwashing equipment, I’m looking for you to provide me all
The black wash and biocidal wash and help me get it off the ground and I’m looking for a mutual relationship where everyone becomes a winner.

Ive read your site in detail and used the products to good effect with watering cans and sprayers,

However I realize that the top end of these systems is really an adapted Powerwasher

I can see from your linked sites that small 6.5 hp pressure washers are used and small bore cables are used because obviously these are light weight and when reaching and washing my thick pipes on a 13 hp 2500 psi machine will
No doubt be too heavy,

I also note that brass fixings might not be the best way forward so I was hoping for some advice on adapting my 13 hp Engine in order that I can use it to mix the liquid as the machine is running and then get pipes that are strong enough to use with such a powerful washer, is this possible ?

Many thanks


Drive Revive



July 31, 2017

Hi Bri

Sorry but we cannot ship our products to Canada. Only UK and Ireland. We could possibly send our book if you are willing to absorb the extra shipping cost. Send an email to sales@benzsoftwash.com and we’ll sort something out.


July 30, 2017

Is there anyway to get your book or products in Canada

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