Red Algae treatment for foorpaths and kerbing

I have red algae on the paths and kerbing around the house. I already powerhosed it a few months ago but it has reappeared.

What is the best product for treating this algae as it is very unsightly?

Mossgo that is specifically for red algae or Moss buster that specifically kills red algae. Follow directions on the can. You will get it in most hardware shops.

Algae

As Dermot said, Mossgo, It was the most effective product I have used, The only problem is waiting for a dry period of 24 hours so it can seep in and let the rain do the rest at a later stage, You need to give the area a good sweep first and then apply using 4/5 parts water to 1 part mossgo, Just mix it in an old watering can and spray, Best of luck.

Thanks Dermot and Salaried. I'll give it a go.