Laserfiche WebLink
3. TRENCH OR BED BOTTOM AREA <br /> H. For trenches with 6 inches of rock below the pipe: � • _ <br /> AxF= 9Pdx ft2 <br /> I. For trenches with 12 inches of rock below the pipe: <br /> . A x F x 0.8= 300 gpd x 2.2 ftlgpd x 0.8 = 528.0 'ft2 <br /> J. For trenches with 18 inches of rock below the pipe: � <br /> A x F x 0.66= gpd x ff/gpd x 0.66= ft2 <br /> K. For trenches with 24 inches of rock below the pipe: <br /> A x F x 0.6= gpd x . ft/gpd x 0.6= ft� <br /> L. For gravity beds with 6 or 12 inches of rock below the pipe; <br /> 1.5xAxF=1.5x gpdx ft/gpd = ft2 <br /> M. For pressure beds with 6 or 12 inches of rock below the pipe; <br /> A x F= ' gpd x ft/gpd = ft2 � <br /> 4. DISTRIBUTION(Check all that apply) <br /> Bed(<6°!o slope) X Drop Boxes(any slope) Rocfi <br /> X Trenches Distribution Box(<3%) � X Chamber <br /> Pressure � X Gravity Graveiless <br /> 5. SYSTEM WIDTH,LENGTH AND VOLUME . <br /> M. Select width= ft <br /> � N. If using rock,divide bottom area b width:(H, I,J or K)divided by P=lineal feet <br /> ft2 � ft = lineal feet <br /> Rock depth below distribution pipe plus 0.5 foot times bottom area: <br /> (Rock depth+0.5 foot)x Area H, I,J,K,L) - <br /> � ( ft+0.5 ft)x � ft2 = ft3 <br /> Volume in cubic yards=volume in cubic feet divided by 27 <br /> / 27= yds <br /> Weight of rock in tons=cubic yards 6mes 1.4 <br /> x 1.4= tons <br /> 0. If using 10"Gravelless Pipe,length=Flow(A)x Gravelless SSF(see figure D-9) <br /> gpd x � ft/gpd = lineal feet <br /> P. If using a Chamber H, I,J,K[based on height of chamber slats�divided by width of chamber in ft) <br /> 528.0 ftZ / 3.0 ft = 176.0 lineal feet <br /> 7. LAWN AREA <br /> Q. Select trench spacing,center to center= �6�feet ��� <br /> R. Multipiy trench spacing by lineal feet R x Q=sq.ft.of lawn area <br /> 6 x 176.0 = 1056 ft2 <br /> �. <br /> r; r��,, ,!'-�t., ,.��T � <br /> f: �`^=;�, f�Y,� � `���:� ;.l�y �:� Pa <br /> � r, �• ~ ;.� , ::� �'�� .l 9e2of2 - <br /> -,i•-:�.-- {°.;,-, ;Y z;:: `= r�e� '%• r`" " <br /> . ��, �'= �;.�.; 1.,'; , <br /> !i L �j 1.9=:':�' ...;.+ ��,�' S� J •, <br /> f...r'. r1''°� %t~ � <br /> 's-�,:�. , . :•, '��` ,F' �y ;�•-•.., I ''`� rF� � <br /> t` (i� �: �';•� �,...�t;��,�Ar;•I �;:..uz;;;;:��� f;i��rc,l.. <br />