THE ULTIMATE GUIDE TO DECK WASHING

How can it destroy algae although not plants? I've a scrap marble and mortar patio (concrete slab beneath). Will this thoroughly clean this just as effectively? I intend to go away rails as-Is that this time and only do the 950 sq. ft. floor. never ever impressed that my now-leaking strain washer did any a lot more than hose nozzle Except if I obt