Experienced gardeners share their insights in answering this question :

How to Identify and Fix Common Gardening Problems ?

We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :

For the most part, you will not need special products for cleaning paving slabs: a mild, gentle soap such as washing up liquid and water will often work just fine. Mix it for a few seconds until you see a nice foam forming on the top.
Generally you should use a detergent that is specially designed for pressure washers. And you should choose the specific detergent based on what you`re cleaning. For example, Floor Wash and Ripper II are a couple of Hotsy detergents that are highly effective for cleaning concrete.
Soapy water method. Contrary to popular belief, you don`t need any fancy products to clean a patio without a pressure washer. In fact, one of the most effective patio cleaning products is good old-fashioned washing-up liquid mixed with warm tap water.
Vinegar can be applied directly or in a 1:1 ratio with water. In the case of bicarbonate soda, dissolve 1 to 5 tablespoons in 10 litres of water, depending on the degree of soiling. The mixture must now soak in for 15 to 20 minutes. The patio is then cleaned with a scrubber and finally rinsed with clean water.
1. Best Overall Concrete Cleaner—ZEP Purple Pressure Wash. Zep concrete cleaner has several great products, and the ZEP Purple Pressure Wash outdoor cleaner is no exception. This alkaline cleaner is low foaming and easy to rinse from the concrete surface.
ZEP 128 oz. Driveway and Concrete Pressure Wash is a powerful, concentrated formula. Works well as a pressure washer cleaner in pressure washing equipment or can be manually applied. It removes dirt, stains, grime and oil, while restoring original look of concrete.
The ideal detergent to use with a Kärcher window vac is Kärcher Glass Cleaning Concentrate. This will help to clean your windows and ensure they are streak free. However, it is possible to use other cleaning agents like washing up liquid.
For ideal utilization and perfect results we recommend the use of Kärcher cleaning detergents. Other hard floor cleaners can be used, but we advise to test a small inconspicuous area before you begin cleaning, as we do not test other brands of detergents for proper dilution ratios and cleaning results.
Let`s make one thing clear right away though – only use pressure washer certified detergent with your equipment. These detergents are specifically made to work with pressure washers and get you the most effective, efficient cleaning solution possible.
Wash the concrete > Mix a solution of ⅓ cup powdered laundry detergent, such as Tide, per gallon of hot water; the granules will act as a mild abrasive. Working in sections, pour some solution onto the floor and scrub with a stiff bristle brush. Wait about 10 minutes for dirt to loosen, then repeat.
Pour one cup of baking soda into a plastic bowl and slowly add two cups of distilled white vinegar. Mix it slowly to create a creamy-yet-spreadable consistency, and use a sponge mop to glaze the patio. You then leave the mix to sit for half an hour before scrubbing well with a nylon-bristle brush.
Vinegar is a natural and safe alternative to cleaning concrete with harsh chemicals. In the case of algae and mold, it does a better job than bleach, and it is better in the long term for killing these infestations. Oftentimes, vinegar can be found in your home or garage.
For larger areas, family cars, a bunch of filthy bikes or a mud-spattered SUV, then you might want to up your spend and go for a K4 or K5 with the Power Control lance. For large courtyard gardens, patios, caravans and motorhomes, go for a K5 or K7 Power Control and you will have the power you need to get the job done.
Apply a Mild Dish Soap

The final step is to apply a household cleaner to treat the stain. Dish soaps are ideal for this job. While they feature surfactants that are able to remove tough grime like oil and grease, they are also safe enough to use on paving stones without compromising their integrity or appearance.

However, a common laundry item – washing powder – was a popular suggestion. Gill commented: “I sprinkle Aldi biological washing powder on my patio and driveway when we get green moss. The washing powder kills the moss. Just sprinkle, you don`t need to scrub.
Bleach is a great way to clean pavers because it is a strong disinfectant. It will kill any germs or bacteria on the surface and remove any molds, plus it will also brighten them up. It is common to mix bleach with water; however, you can also add other ingredients to make it more effective.
It is a chemical blend that removes stubborn and persistent taint from laundry. Cleaning the patio slabs with washing powder is an easy way. It seems simple, but washing powder works marvelously on a dirty patio. Moreover, the washing powder can be chosen considering the material of the patio slabs.

Discover Relevant Questions and Answers for Your Specific Issue

the most relevant questions and answers related to your specific issue

1750 psi Electric Pressure Washer: My pressure washer is losing pressure and is pulsa…
ANSWER : If the pressure washer is pulsating then that is a sign of check valve failure. You may be able to clean of replace the check valves. Replacing the head is the wrong way to go. This is completely unnecessary. If you can tell me the model number of your pressure washer then I can assist you better in pointing you in the right direction.

Read Full Q/A … : Karcher

Need help in getting Honda engine on NorthStar pressure washer to run.
ANSWER : Could be low water pressure I have found.Also, I purchased a can of “stuff” at Lowes today which allows you to circulate a liquid substance which lubricates the pressure pump….the pump could be frozen up…I have a rotating nozzle which I bought…and it had frozen up…this stuff works

Read Full Q/A … : Karcher

<!– from fixya rte –>Rope pull start is stuck, won't pull out – Honda Black Max 2600 PSI Pressure Washer
ANSWER : Check the oil level, if it’s very low or burnt then it may have siezed up internally.
It could also be that be that the cylinder is filled with oil or fuel.
if the washer was tipped over the fuel or oil may have migrated in to the piston combustion area.

Read Full Q/A … : Karcher

My electric stea pressure washer wont ignite burner
ANSWER : There can be multiple problems with the burner.

Here is a link to a page for troubleshooting burners.


Read Full Q/A … : Karcher

How do you bypass the cut off switch – Dewalt 3800 PSI Pressure Washer
ANSWER : Connect the white and black wire together

Read Full Q/A … : Karcher

The motor will only run when i pour gas into the carb
ANSWER : Clean the carburetor

Read Full Q/A … : Karcher

Loss of pressure so only washing and not cleaning as before – still power, water and can hear motor but no pressure
ANSWER : Seals may be bad

Read Full Q/A … : Karcher

Oil appears to have come out of the oil filler cap. Is this a sign of overfilling the oil, or something else?
ANSWER : Id definitley say its over filled. try checking the dipstick

Read Full Q/A … : Karcher