Truck-mounted unit

Truck-mounted unit
One of our truck-mounted units

Monday, December 9

I know what to do with my dirty carpets. I will get a hire machine. How difficult can it be?


In the immortal words of the robot in Lost in Space “Danger Will Robinson!”

We have just finished a job recently that confirmed a theme maintained by many professional carpet cleaning company owners and their technicians. Hire machines actually make work for professional carpet cleaning companies.

This may sound like clever bravado but time and again we have proved that home owners who have rented machines and cleaned their carpets are engaged in a downward spiral of grubby carpets getting grubbier with each ‘clean’. Eventually they despair and call in a professional.

The lightweight machines rented out in the UK (mostly the same models/machines as used in the US market but 240v instead of the 120v used Stateside) are actually pretty good at the first part of the job.

They spread a luke-warm soapy solution very effectively around the carpet (sometimes with a revolving brush head) which makes sure this soapy solution is worked well into the carpet, and thus ensuring that your carpet now has a dirty, soapy scum on the ‘face fibre’ of the carpet. Any really dirty areas will have the dirt moved elsewhere and transferred to other, cleaner parts of the carpet.



You have to use the very soapy products that the hire machine company sells because they say you must only use their products in their machine. This is clearly just plain wrong because no mere liquid is going to damage the inner workings of what is in effect a wet vacuum system with filters and safeguards to stop liquids or foam reaching the electric vacuum motors. But they charge a great deal of money for these soapy products and they make a great deal of money out of selling a fairly cheap product. It is a win/win ‘solution’ for them.

If you are a consumer of these products/rental services though it is a lose/lose situation and I will now explain why.

While these machines are relatively efficient at spreading the soapy solution around the fibres of your carpet (gravity also helps it do the job thoroughly) they are very inadequate when it comes to recovering and rinsing the soapy solution. No amount of going back and forward will improve the situation as the vacuums and rinsing actions are just not up to the job of recovering the dirty ‘slurry’ that you are creating on the carpet surface. Each subsequent rinsing action/vacuum run just adds more water and makes a good result even less likely.

The result of this is that you may partially recover some of the soapy, dirty scum that you have just spread all over your carpet but unfortunately you will leave most of it embedded in the carpet where because of the action of the detergents it has the appearance of having ‘cleaned’ the carpet. It has of course done nothing of the sort as each fibre is now coated with a soapy ‘jacket’ that dries but still attracts dirt and soil like a magnet for anything being walked into your house on a daily basis.

If this were not bad enough you have at the same time effectively removed your carpets natural ability (in it’s clean state) to shed soil and turn it into dry dust which normally you would simply vacuum up on a regular basis. Carpet cleaning (the proper variety) is designed to strip the attached soil from your carpet fibres that has emulsified and joined with the fibre to make your carpet look dirty and unattractive but which cannot usually be vacuumed up and out of the carpet.

As with the jobs that we see, the carpets that have been poorly cleaned with hire machines end up very soiled indeed and it is as if there is a grey ‘mantle’ or ‘cast’ over the entire carpet – not just where the carpet was dirty in the first place but wherever it has been ‘cleaned’. 

So the remedy to a hire machine disaster is actually rather easy to achieve for a well-equipped operator. The better the standard of 'the rinse' action of the professional carpet cleaners system then the more emulsified soil will be released and extracted from the dirty (i.e. cleaned!) carpet and yet still leaving the carpet relatively dry.

So while I would not wish that everyone goes out and hires one of these machines and then does a dis-service to their carpets I don't really mind if their use increases because I know ultimately that the market for carpet cleaning will continue to grow for this (and other) reason(s).