January 16, 2018
A customer asked us to analyse the reasons why a concrete slabbed patio he'd softwashed with Benz Bio Cleanze recolonised with light green algae.
He reported that some of the slabs had re-colonised after only a few months and was concerned because he had offered a 6-month guarantee.
This is what we told him ...
1. The grouting has failed and is in very poor condition. This gives the algae lots of cracks to hide in and then flare up again. Water lodges in the cracks, which encourages regrowth of the algae.
2. The grass lawn is higher than the patio so what happens a lot of the time is the cut grass blows down onto the patio and then decomposes, breeding algae at the same time. We've often seen a flare up of green algae where grass cuttings have been left on a clean path or drive. On our own drives we've noticed this happening when grass cuttings fall off the lawnmower moving from one lawn to another. And of course once algae gets a hold in one place it's easy for it to spread.
3. The drainage is poor and "pooling" is occurring. Patios need a good drainage system as pooling will encourage regrowth of algae. Sandstone is especially vulnerable and if it pools water it will need regular treatments to keep on top of the tendency for algae to recolonise.
4. The customer may have placed plant pots, and/or garden furniture, on the patio after the surface has been cleaned. These quite often overflow and spill soil and other organic material onto a patio. And of course algae can grow under them and spread. Also, the outside of terracotta pots often have a heavy biofilm that will encourage re-colonisation of a treated surface.
5. Moss could be falling from the roof onto the patio and doing the same as the grass in point 2.
6. Leaves from trees could be falling onto the patio and doing the same as grass in point 2.
Because of the above reasons, including the amount of shade and exposure the patio gets, and depending on the surface and general environment, a light re-treatment wtih Bio Cleanze in the autumn, to treat the flare-up of green algae after a summer treatment, is sometimes necessary to be able to keep a patio clean all year long.
This is because the active ingredient in Bio Cleanze is still relatively fresh when the damp, mild conditions come in, thus offering a better chance of keeping the surface free from infestation.
The cost of regular re-treatments should be relatively small, as there is very little preparatory work needed compared to a new clean of a surface that hasn't been cared for.
Another approach would be to apply Benz Lightning Cleanze in the summer to get the surface initially clean and then a treatment of a Bio Cleanze in the autumn/winter as ongoing maintenance.
Re guarantees: Our customer told us he had offered a 6-month guarantee. In the Softwash Services sides of our business we never offer this for paths, patios and drives because there are so many variable factors involved that are out of our control.
For example, we cannot control whether our customers sweep up leaves and grass cuttings, or control their placement of plant pots and items of garden furniture. And of course the quality of grouting on patios varies enormously, and is itself subject to decay leading to it becoming a catchment area for algae spores.
The same applies to cracked concrete paving slabs, where the cracks become breeding grounds for algae spores.
We've found the best approach is to simply, and carefully, explain to your customers the problems that can arise and what they can do to reduce the propensity for algae to regrow. And explain why the condition of their patio may limit the effectiveness of any cleaning treatment.
We've found that almost everyone is open and receptive to quality professional advice because they know it will help them better maintain their property. Then they won't expect you to work miracles ... but simply do the best you can.
We hope this information was helpful and inspires you to succeed in your softwashing business.
Ben, Leo & Fiona
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July 21, 2021
We use pencil jets in our brushes because we've found they don't clog or break as much as fan jets.
In the case of the Gardiner 45cm brush we use four of them. We turn the pump down so the flow rate is acceptable and does not produce much run-off.
Flow control at the pole is still critical however. Click the link on this page to learn about the solution we've found to be so successful ...
July 15, 2021
July 10, 2021
Some customers have wondered why we add IPA (Isopropyl Alcohol) to Benz Bio Cleanze. So we thought we'd clear this up and clarify the situation once and for all.
Click the link on this page to read the full Trade Tips post ...
It's a free resource for people wanting to learn about the soft washing industry, to expand an existing business, or build a new business.
Soft washing reduces, or even eliminates, the need to use high-pressure washing.
Instead, once the build up of algae, lichen, fungus, moss and mould – the root causes of properties looking "dirty" – has been treated, the natural "self-cleansing" of sun, rain and wind removes the surface residue through time.
By educating the cleaning trade and public about soft washing we are helping develop an industry that offers sustainable treatments to clean and maintain exterior hard surfaces.
Subscribe to our free trade tips blog to download your "Professional Soft Wash Contractors Pricing Guide".
The free guide shows you – step by step – how to easily, quickly, and accurately create softwash business quotes.
This saves you time, is a highly professional approach, and increases your chances of winning new contracts.