To the real estate editor: With reference to the letter about removing moss from a brick patio, all you need is a sprinkling can with a fine- to medium-spray nozzle and plenty of household bleach.
Sprinkle the patio with an even covering of the bleach and in 20 minutes the job is done.
Here are some tips.
Use the cheapest brand of bleach as they all contain 5.25 percent sodium hypochlorite.
Use the bleach undiluted.
Keep bleach off plants and grass.
Keep pets off patio until it dries.
Sweep the patio before treating.
Do not rinse patio after treating.
Our patio is 15 by 30 feet and required 10 to 12 gallons of bleach.
The treatment doesn't prevent moss from growing back, but we treat our patio about once a year so the moss is not hard to control.
If you have a question about designing, improving, or maintaining your home, send it to the real estate editor, The Christian Science Monitor, One Norway Street, Boston, Mass. 02115. Richard A. Kent is a practicing architect and general contractor in southern California.