1 Chlorophyll: the pigment that gives plants their green color and allows them to absorb sunlight... 2  more. 3  Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 4  Other living organisms such as algae also have cells that contain chloroplasts.how/hide words to know. 1  Chlorophyll: the pigment that gives plants their green color and allows them to absorb sunlight... 2  Chloroplast: a part of a cell found in plants that converts light energy into energy plants can use (sugar). 3  Thylakoid: the disk-shaped parts of a plant cell where light-dependent reactions occur...
Pool Decks. Get ideas for sprucing up your existing pool deck with overlays that can be colored, stamped and stenciled. Learn how to lay out a pool deck taking into consideration sun, shade, privacy, views, the size of the yard and more. Compare popular types of pool coping, including poured and precast concrete, as well as natural stone. Download these design sheets for concrete pool deck ideas in modern, old-world, or traditional design schemes. Download this catalog for the top trends in decorative concrete pool deck design. Watch this series of videos for pro tips and info on designing concrete pool decks.
Low pH (acidic water) can also corrode metal parts of a pool system and damage the plaster finish. The State standard for pH is 7.2 â 8.0 (Recommended range 7.4â7.6). To lower the pH, muriatic (hydrochloric) acid must be added. It is advisable to add the desired amount of acid to a full (plastic) bucket of water before adding to the pool. (Acid introduced directly can stain the pool wall.) To raise the pH, soda ash (sodium carbonate) must be added. ALKALINITY Alkaline (basic) substances are present in all water. Within the 7.2â7.8 pH range, alkalinity exists as a bicarbonate material.