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Old 27.04.2020, 17:54
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Strong Cleaning Formula for Balcony Floor

Hi,

A dark color has been formed on a part of our Balcony floor, probably because of the rainwater remaining due to the blocked balcony drain.

I'm looking for strong liquids to clean it up, now that Coop DIY etc. are again open. I appreciate any recommendations and experiences of working solutions.

Many thanks
Best
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  #2  
Old 27.04.2020, 18:04
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Re: Strong Cleaning Formula for Balcony Floor

What floor are you on? Most strong cleaners will be very toxic to people, animals and plants- so you need professional advice.
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Old 27.04.2020, 18:07
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Re: Strong Cleaning Formula for Balcony Floor

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What floor are you on? Most strong cleaners will be very toxic to people, animals and plants- so you need professional advice.
A balcony floor, I think ceramic or so. It's not indoor, so I hope risk is low.
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Old 27.04.2020, 18:12
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Re: Strong Cleaning Formula for Balcony Floor

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A balcony floor, I think ceramic or so. It's not indoor, so I hope risk is low.
Can you post a picture? If you put harsh chemicals on your balcony and rinse it, those chemicals will rinse into the garden of your neighbor below. Also it's a nice courtesy to warn the neighbors below if you're going to be doing some enthusiastic cleaning, so they can move patio furniture and close windows as needed.
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Old 27.04.2020, 19:22
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Re: Strong Cleaning Formula for Balcony Floor

On our white ceramic tiles I use a mixture of baking soda and vinegar. Non toxic, inexpensive and works a treat.
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Old 27.04.2020, 20:11
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Re: Strong Cleaning Formula for Balcony Floor

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A balcony floor, I think ceramic or so. It's not indoor, so I hope risk is low.
Sorry, I meant are you on the ground floor, 1st floor, 2nd floor, or storey?

Vinegar and soda mix sounds like the best - rub it in with a hard brush and leave on to work for an hour or so.
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Old 27.04.2020, 20:28
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Re: Strong Cleaning Formula for Balcony Floor

If water running to the neighbour below is no issue, the I would water blast it as the first no chemicals solution. If you do use chemicals, then keep the volumes low. Any excess is wasted and can only cause problems. Mould cleaner is highly basic - much cheaper if you buy washing soda (Sodium carbonate) from the drogerie, washing soda is stronger than baking powder. Adding vinegar produces bubbles and enhances the lifting effect but neutralises the base, so add the vinegar after an hour. The harsh chemicals have the benefit of killing mould spores.
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Old 27.04.2020, 20:43
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Re: Strong Cleaning Formula for Balcony Floor

If you have neighbours in the same building, you could also ask them what they use to clean their balconies.
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Old 27.04.2020, 20:57
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Re: Strong Cleaning Formula for Balcony Floor

If water running to the neighbour below is no issue, the I would water blast it as the first no chemicals solution. If you do use chemicals, then keep the volumes low. Any excess is wasted and can only cause problems. Mould cleaner is highly basic - much cheaper if you buy washing soda (Sodium carbonate) from the drogerie, washing soda is stronger than baking powder. Adding vinegar produces bubbles and enhances the lifting effect but neutralises the base, so add the vinegar after an hour. The harsh chemicals have the benefit of killing mould spores.
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Old 27.04.2020, 22:29
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Re: Strong Cleaning Formula for Balcony Floor

I was also going to suggest using a power-washer. I used one recently on the stone tiles of our patio and was amazed at how well it removed everything, including all the mold, etc. from the concrete. It looks like I have a brand new floor out there. The kind I used required a hose hook-up, though (which wasn't a problem since we have a hose in our garden). But I assume you don't have a hose on your balcony, so you would need the kind of power washer that allows you to fill it with water first (unless you ran a hose from your bathroom or kitchen faucet using an adapter).

If you do decide to try a power washer, there is a nice site that allows you to rent various machines and tools from people in your area. Looks like there are some power washers on there for around 10 CHF per day or more.

https://www.sharely.ch/search/?searc...ocation&page=3

I think you might also be able to rent them from places like OBI, but I'm not sure.

Last edited by Pancakes; 27.04.2020 at 23:08.
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Old 28.04.2020, 09:21
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Re: Strong Cleaning Formula for Balcony Floor

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...the kind of power washer that allows you to fill it with water first (unless you ran a hose from your bathroom or kitchen faucet using an adapter)...

Hi Pancakes,
I have been looking into buying a power washer, and was wondering exactly that: Are there models that you can fill it with water, rather than have the direct connection? I do have a way to run a hose from my kitchen, but, I hate doing that as its never convenient to unscrew/rescrew and there's always a bit of leakage.


Any idea of brands, models, where to look for that fit the bill?


Thanks in advance,
Best
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Old 28.04.2020, 09:29
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Re: Strong Cleaning Formula for Balcony Floor

I have a kaercher. Since I have a large terrace with a water outlet, it’s no problem. I don’t know if there are ones you fill up, they use a lot of water. A steam cleaner might be feasible - you fill them up and either connect to electricity or there might be battery operated models.
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Old 28.04.2020, 09:55
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Re: Strong Cleaning Formula for Balcony Floor

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Hi,

A dark color has been formed on a part of our Balcony floor, probably because of the rainwater remaining due to the blocked balcony drain.

I'm looking for strong liquids to clean it up, now that Coop DIY etc. are again open. I appreciate any recommendations and experiences of working solutions.

Many thanks
Best

Borrow or rent a Karcher for the morning, will be as good as new in a few minutes.
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Old 04.05.2020, 11:18
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Re: Strong Cleaning Formula for Balcony Floor

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Borrow or rent a Karcher for the morning, will be as good as new in a few minutes.
What liquid to use then?
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Old 04.05.2020, 11:23
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Re: Strong Cleaning Formula for Balcony Floor

Choose a relevant detergent for the Karcher
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Old 04.05.2020, 11:25
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Re: Strong Cleaning Formula for Balcony Floor

Just water. The high pressure will take care of everything, mechanically removing whatever is on top of the ceramic tiles.

Don't worry, to cut the tiles you would need much higher pressures
https://en.wikipedia.org/wiki/Water_jet_cutter
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Old 04.05.2020, 12:20
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Re: Strong Cleaning Formula for Balcony Floor

Dissolve some of this
https://www.coopvitality.ch/de/feink...4aAkJhEALw_wcB
in a liter of water, leave to soak of the tiles for a couple of hours and then kärcher it with tap water. If you are lucky the washing soda may do the trick without water blasting.
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Old 04.05.2020, 12:50
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Re: Strong Cleaning Formula for Balcony Floor

And this is how it looks like, for those who'd asked:
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Old 04.05.2020, 17:03
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Re: Strong Cleaning Formula for Balcony Floor

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Just water. The high pressure will take care of everything, mechanically removing whatever is on top of the ceramic tiles.

Don't worry, to cut the tiles you would need much higher pressures
https://en.wikipedia.org/wiki/Water_jet_cutter
What if I don't have a water outlet in the balcony?
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Old 04.05.2020, 17:04
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Re: Strong Cleaning Formula for Balcony Floor

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And this is how it looks like, for those who'd asked:

With a Kärcher or with baking soda/vinegar?
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