Of course you have a beautiful patio so you can relax and enjoy the outdoors but it is also important to take steps to maintain the surfaces so you can enjoy it for years to come and relax with friends and family.
If moss or mold appears on or between the pavers, use liquid bleach diluted in water (10 parts water to 1 part bleach) and scrub with a broom then rinse off. If this is an ongoing issue, and for a more permanent solution, ask an expert to consult on correcting the moisture or shade problems that are causing mold and moss to reappear.
Sealers and/or polymeric sand can prevent weeds from growing and even ants from entering your paver patio. For joint sand, we use polymeric sand on our patios, so regular maintenance is not required. You can certainly also use a sealer to help with wear and protect from stains but that is a matter of personal preference and typically isn’t required if you use polymeric sand in the joints.
In order to help prevent and remove weeds, simply pull by hand (the sooner the better) or use biodegradable herbicides that won’t harm adjacent vegetation or pollute water supplies. Some wear and loss of color is inevitable over time, but regularly cleaning and sealing the surface of concrete pavers can moderate it.
If you have a spill or stain, it is important to treat stains as soon as possible by wiping the surface and applying liquid detergent such as Dawn. Allow to soak for several minutes, then wash with hot water as needed. Repeat if stain persists. It may pay to have a specially formulated cleaner on hand. Or, for difficult to remove stains, it may be more simple or cost effective to replace stained pavers with new ones.
*please remember to also adhere to instructions from your manufacturer for best practice paver maintenance