Вот нашла про Soda Crystals.
You don’t need to spend hours scrubbing away with brushes that scuff and damage your patio, stains and moss can be removed in one go with this trick.
There are other methods that will work, but soda crystals are by far the most cost-effective solution that doesn’t involve physical toil and harsh chemicals.
You can follow the same steps on your driveway, blocked outside drains, decking, and other outside surfaces.
Soda crystals are available to buy in 1kg bags from most major supermarkets, including Tesco, Sainsbury’s Morrisons, Asda and Co-op, but they’re also available in other retailers such as B&Q, Savers, Home Bargains, Robert Dyas and Boyes.
For this job, you probably want to buy the large 10kg or 25kg bags that are available from Chinese wholesalers sold under the name of ELCO.
If you can’t get your hands on a larger bag of Soda Crystals, just make sure you stock up on enough small bags to get the job done in one go.
How to clean the patio:
Pour soda crystals onto the patio before it rains.
This task ideally needs to be done before rain is expected, so check the weather forecast and plan accordingly.
Sprinkle Soda Crystals on the ground and wait for it to rain. If rain doesn’t materialise, use a watering can to wet the crystals.
Leave the resulting paste for a day or two and you will be able to brush or scrape away the brown debris easily.
It’s as simple as that. Do this job at the beginning and end of every season to keep your patio sparkling.
How to clean the patio:
You can use soda crystals on wood, but it will strip away the old varnish
If you don’t have a patio and have wooden decking instead, you can use Soda Crystals to clean the area.
Dri-Pak’s expert said: “Not only does it get rid of moss and leaves, but also helps in the preparation of the wood, stripping old varnish ready for a spring coating!”
If you have tired-looking plastic furniture in your garden, use Soda Crystals to spruce them up.
The expert said: “Soda Crystals can also be used to remove old dirt and grime from plastic patio furniture.
“Simply spray with Liquid Soda Crystals or apply a regular Soda Crystals solution to the affected area, and leave to work on the dirt and grime for half an hour. Then simply wipe away with a clean cloth and water.
“This will effectively remove any lingering stains without excessive elbow grease
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