[richard connett]

For those that soft wash regularly what type of chemical do you use?
I’ve been asked to look at a customers house that has painted rendering that has gone green and black in places. The texture is dimpled . I tried with just water to see how easily it would shift and it didn’t hardly at all.
Has anyone had any success with the product wet and forget?
Just thinking wether to walk away or if these chemicals actually work as described
Cheers

[Smudger]

Hypo

spray in on using backpack and water fed pole

Darran

[Slacky]

Start off with 2% hypo.

Make sure you rinse off after wards, thoroughly, and rinse the windows before the hypo dries on the glass.

[Splash & dash]

Unless you know what you are doing be vary careful with  hypo as you can do a lot of damage .

[EandM]

Hypo is brilliant stuff but it's hard work and make sure you wear a decent mask.

[Splash & dash]

Hypo is brilliant stuff but it's hard work and make sure you wear a decent mask.

Hard work ??  Hows that

[EandM]

Hypo is brilliant stuff but it's hard work and make sure you wear a decent mask.

Hard work ??  Hows that

The last place I did was big. Physically working from a static backpack takes considerable time in application and scrubbing.
I used a cheap mask initially, thinking I was outside and well ventilated. Didn't work.
Bought a decent charcoal filter mask and all was well.
When this place needs doing again I'm going to use my industrial steam cleaner.

For some reason, I can't upload the finished picture.

[Splash & dash]

Hypo is brilliant stuff but it's hard work and make sure you wear a decent mask.

Hard work ??  Hows that

We use a trolly the application time is so much quicker than a back pack , green algae doesn’t  need much scrubbing , it’s the black and red that are harder work .apply the hypo and let it dwell for 45 muinits this will also reduce the the amount of scrubbing needed quite dramatically you are letting the chemical do the work .

The last place I did was big. Physically working from a static backpack takes considerable time in application and scrubbing.
I used a cheap mask initially, thinking I was outside and well ventilated. Didn't work.
Bought a decent charcoal filter mask and all was well.
When this place needs doing again I'm going to use my industrial steam cleaner.

For some reason, I can't upload the finished picture.

[EandM]

[Splash & dash]

Looks very good but is a big place to do with a back pack 😂😂 well done

[richard connett]

I was tring to get away from hard work !
Thanks for the reply’s . I take it 2% just means the dilution ? Any pointers on the brand of chemical

[Slacky]

The hypo I get is from Mole Valley Farmers. It comes at 11% so I dilute it down to approx 2% for render. So it’s a fifth of it’s original strength.

Did this place last week, roof, render and drive. Sorry, didn’t get any before pics. This is halfway through the job.


I used a softwash machine, I’ve had enough of backpacks.

[zesty]

Proper softwash machine, hypo, no scrubbing needed. Never in my life of softwashing have I had to scrub.

Just use a stronger mix, and leave it to dwell for longer.

Shouldn’t need to scrub!

[james peters]

I know its not render  but .....
I did this with back packs..... I only had 2 back packs and the batteries died about 3/4 way through , and I ran out of water.
I managed to finish it using their water source . luckily it was coming clean with TFR
I dont find render cleaning hard , I quite enjoy it

ps its  about 4 times the length of whats in the picture

[EandM]

Looks very good but is a big place to do with a back pack 😂😂 well done

I sat the backpack by the tap and connected it to the hose reel which made life a lot easier.
The hypo was agricultural stuff, incredibly cheap and very strong.
Even with a surfactant and 30-45 minutes dwell time it needed a couple of applications - though it was extremely grubby.

There are some health and safety concerns with the use of it you're also not supposed to get into a water source.
It did do a highly effective job of restoring the render but I think I'd rather just spend my time cleaning windows.

[Splash & dash]

Proper softwash machine, hypo, no scrubbing needed. Never in my life of softwashing have I had to scrub.

Just use a stronger mix, and leave it to dwell for longer.

Shouldn’t need to scrub!

What machine do you use any pictures of it in action we are currently using pure freedom nano trollies but getting so busy with softwashing need to look at getting something faster , it’s Interesting  to hear you don’t scrubb at all ?? Would you be able to get results like this with your way of doing it ?

[richard connett]

Perfect thanks for all the info !
I think I’ll give it a go with the hypo and a backpack

[zesty]

Splash,

I was the first person to buy one of Ben Marriott’s Rolltek machines, I drove up and collected it back in 2015 i think. Still got it! Though have replaced the pump.

I’ve not done one as bad as that, but I have done similar with black algae all over the render.

I use a stronger mix in which case, so 5%, and apply twice if necessary, then the usual rinse off. I’ve never used a brush, ever.

People get worried about higher strengths, but as long as common sense prevails, and you tell the customer what’s necessary, it’s not a problem.

Obviously not a good idea if lead flashing is all over the place. Needs Pre wetting and rinsing fast at those strengths.

Edit: I bought one of Bens Mt4 beast machines last year, but it was actually overkill, too powerful and big for most jobs, so I sold it. The Rolltek is the one to go for.

[Splash & dash]

Splash,

I was the first person to buy one of Ben Marriott’s Rolltek machines, I drove up and collected it back in 2015 i think. Still got it! Though have replaced the pump.

I’ve not done one as bad as that, but I have done similar with black algae all over the render.

I use a stronger mix in which case, so 5%, and apply twice if necessary, then the usual rinse off. I’ve never used a brush, ever.

People get worried about higher strengths, but as long as common sense prevails, and you tell the customer what’s necessary, it’s not a problem.

Obviously not a good idea if lead flashing is all over the place. Needs Pre wetting and rinsing fast at those strengths.

Edit: I bought one of Bens Mt4 beast machines last year, but it was actually overkill, too powerful and big for most jobs, so I sold it. The Rolltek is the one to go for.

Thanks for your input I have been looking at bens st3  rolltech frame set up but don’t know anything about them , we do loads like in my pictures got 20 booked in  and a couple of big industrial units so you just spray with mix then use the same pump to rinse using the pressure to remove the dirt ? No scrubbing?? I need tk find a faster way as we are booking in more jobs than we can physically do at the moment , does  yours have a Honda or loncin engine ?.

[Smudger]

Splash don't waste your money - get a chem injector for £20 and fit it to the lance of your p/w suck up from the barrel - that job would be done in around 25 mins - no scrubbing either

Darran