Calculation Total Dynamic Head

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CALCULATION OF TOTAL DYNAMIC HEAD IN POOL AND SPA RECIRCULATION SYSTEMS FACILITY NAME:___________________________________________________________________________________ FACILITY ADDRESS:_______________________________________________________________________________ 1. Minimum turnover cycles (at dirty filter) are: (a) 6 hours for swimming pools, special purpose pools, and artificial swimming lagoons; (b) 4 hours for wave pools, watercourse rides, activity pools, and splash pools whose main use
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  G:/HOME/HOOD/LORRAINE STUFF/CALCULATION OF TOTAL DYNAMIC HEAD Page _______ of _______  CALCULATION OF TOTAL DYNAMIC HEAD IN POOL AND SPA RECIRCULATION SYSTEMS FACILITY NAME:___________________________________________________________________________________ FACILITY ADDRESS:_______________________________________________________________________________ 1. Minimum turnover cycles (at dirty filter) are: (a) 6 hours for swimming pools, special purpose pools, and artificialswimming lagoons; (b) 4 hours for wave pools, watercourse rides, activity pools, and splash pools whose mainuse is other than as a splash pool (such as a large swimming pool with one slide); (c) 1 hour for splash pools andchild amusement lagoons; (d) 30 minutes for spas and wading pools; (e) 4 turnover cycles between users for flotation tanks.2. Head loss data is required for all system components.3. Use head loss data provided in HYDRAULICS CALCULATION GUIDE provided by the Clark County HealthDistrict or submit manufacturer’s engineering specifications.4. Leaflets, catalogs, brochures, or other descriptive material, including pump performance curves, must be providedfor all recirculation equipment.5. Assemble the CALCULATIONS OF TOTAL DYNAMIC HEAD by using as many pages as required. Alwaysinclude This Cover PAGE, MINIMUM/DESIGN FLOW WORKSHEET , MAIN DRAIN PIPING, MAIN SKIMMERPIPING, INDIVIDUAL SKIMMER PIPING , section A all skimmers, section B (the skimmer, or skimmers with themost restriction only), FACEPIPING, HEATER PIPING (if a heater will be installed), MAIN INLET PIPING, INLETPIPING, section A for all inlets, section B (the inlet, or inlets with the most restriction only) and/or  INLET PIPING for (floor inlet, or inlets with the most restriction). Include sections A and B for the floor inlet with the mostrestriction and a Section A and B for the wall inlet with the most restriction, if both floor and wall inlets are used inthe same recirculation system, it the main inlet or skimmer line is teed there will be more than one inlet section Bto be calculated. If the inlets run from the main run in linear loop one section b is required. Include a FINALCALCULATIONS page. Assemble the pages in order, number them in the spaces provided at the bottom of eachpage. Use the design flow calculations with the corresponding forms provided and the frictions losses andequations found in the HYDRAULICS CALCULATIONS GUIDE to complete these forms. (For Remodelsassemble the forms as needed as an addendum to the srcinal Hydraulic Analysis located in the Archived file.)As a bare minimum the final calculations page must be submitted with the new total dynamic head and flow rates.Pages for each change should also be included, such as, face piping page for the addition or change in multiportvalves and filters and accompanying pipe. Skimmer or inlet pages as necessary during major remodeling must besubmitted as per the above instructions. Heater pages for a change in model/manufacturer and BTU’S output.The head loss must be accounted for. Any change in pipe diameter, or equipment can have a affect on the totaldynamic head and the pump capabilities.POOL CONTRACTOR’S LICENSE NUMBER____________________________  ________________________________________________________________ Signature of  □ architect, □   engineer or  □ A-10 contractor  ________________________________________________________________ Seal Print or type name Date******************************************************************************************************************************************  G:/HOME/HOOD/LORRAINE STUFF/CALCULATION OF TOTAL DYNAMIC HEAD Page _______ of _______  CLARK COUNTY HEALTH DISTRICT APPROVAL BY:____________________________________________________ DATE:____________________________________________________ APPROVAL IS NOT INTENDED TO CONVEY APPROVAL FOR ANY MISTAKE OR OMISSIONS CONTAINEDHEREIN. PROPER DEVELOPMENT IS THE RESPONSIBILITY OF THE VARIOUS PARTIES CONCERNED AND ALLAPPLICABLE LAWS, RULES, AND REGULATIONS SHALL BE STRICTLY ADHERED TO.
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