If this is just a vertical in-line drawing from a potable water source, there is no need for a strainer. It doesn’t matter if it’s an in-line or HSC, what matters is the water source. You shouldn’t have anything in a potable source that could clog up a fire pump. At least we hope not. J
Craig Prahl | Jacobs | Group Lead – Fire Protection | 864.676.5252 | [email protected] | www.jacobs.com<http://www.jacobs.com/> From: Sprinklerforum [mailto:[email protected]] On Behalf Of P & P Sprinklers Ltd Sent: Tuesday, April 24, 2018 2:33 PM To: [email protected] Subject: Re: [EXTERNAL] RE: Strainer ahead of fire pump We are protecting a new school that is running off city water. The town is supplied water from a pond via their own pumps. I would assume the water is already treated. The thing is, this install has been completed since last year and only now are they getting around to commissioning and are looking for a strainer they say was required. There was no mention of a strainer on the drawings, although there was a line in the spec with reference to one. On 4/24/2018 3:53 PM, Prahl, Craig/GVL wrote: If you’re drawing from any open pond or other raw water source you need to provide a strainer. Craig Prahl | Jacobs | Group Lead – Fire Protection | 864.676.5252 | [email protected]<mailto:[email protected]> | www.jacobs.com<http://www.jacobs.com/> From: Sprinklerforum [mailto:[email protected]] On Behalf Of Tom Duross Sent: Tuesday, April 24, 2018 2:11 PM To: [email protected]<mailto:[email protected]> Subject: [EXTERNAL] RE: Strainer ahead of fire pump Actually I think if the pump has no cleanout provisions, a strainer is required on vertical inline pumps. From: Sprinklerforum [mailto:[email protected]] On Behalf Of P & P Sprinklers Ltd Sent: Tuesday, April 24, 2018 2:08 PM To: [email protected]<mailto:[email protected]> Subject: Re: Strainer ahead of fire pump Would I be right in assuming that the wording "where necessary" implies that it should be avoided unless necessary? On 4/24/2018 3:27 PM, MFP Design, LLC wrote: It’s not required but is permitted. [MFP_logo_F] Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 email:[email protected]<mailto:email:[email protected]> http://www.mfpdesign.com<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttp-253A-252F-252Fwww.mfpdesign.com-252F-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DHJ8OA4xyeHAoxXNz5mu-252FYfycgtd5nsFrrpvzulZiNkQ-253D-26reserved-3D0&d=DwMFaQ&c=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk&r=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI&m=tvIzK3RY_-Gey4GF4i5zgndplGh8OzDLxzAzKoRwcvM&s=xTvdPOenUtcoLD_qv-qOE5AX-OZL1N5rdLq74S1Lvpw&e=> https://www.facebook.com/pages/MFP-Design-LLC/92218417692<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.facebook.com-252Fpages-252FMFP-2DDesign-2DLLC-252F92218417692-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DH-252BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk-253D-26reserved-3D0&d=DwMFaQ&c=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk&r=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI&m=tvIzK3RY_-Gey4GF4i5zgndplGh8OzDLxzAzKoRwcvM&s=2XjdolqpW6uLl2_s1KM92f9jXNh34kkNFoB05ovD9Qk&e=> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.hightail.com-252Fu-252FMFPDesign-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DeGdMZGu2wXhUupGwgGTrqF3b54OP5-252BAZvlHhABSexWY-253D-26reserved-3D0&d=DwMFaQ&c=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk&r=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI&m=tvIzK3RY_-Gey4GF4i5zgndplGh8OzDLxzAzKoRwcvM&s=RsrvxMaOfKfiflQNI_PauxpGansfjaRHBy_-00T1kvk&e=> LinkedIn: https://www.linkedin.com/in/travismack<https://urldefense.proofpoint.com/v2/url?u=https-3A__na01.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.linkedin.com-252Fin-252Ftravismack-26data-3D02-257C01-257C-257C1121d49f9e6b4cf248f108d4df580e77-257C14e5497c16da42e69ffa77d19bafe511-257C0-257C0-257C636379016677342180-26sdata-3DtT5E7LsZjSmyreKi4gDCa70EWN-252BZodi-252FhbeCbHNRijI-253D-26reserved-3D0&d=DwMFaQ&c=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk&r=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI&m=tvIzK3RY_-Gey4GF4i5zgndplGh8OzDLxzAzKoRwcvM&s=mVFw8ZGgaDJyM_1hKUL6JNBu00QZvueFtbsDtE4PbwQ&e=> “The bitterness of poor quality remains long after the sweetness of low price is forgotten.” From: Sprinklerforum <[email protected]><mailto:[email protected]> On Behalf Of P & P Sprinklers Ltd Sent: Tuesday, April 24, 2018 10:57 AM To: [email protected]<mailto:[email protected]> Subject: Strainer ahead of fire pump Is a strainer required before a Vertical in-line pump? All I can find regarding strainers in NFPA 20, 2010 ed. is the following: 4.14.9.2 The following devices shall be permitted in the suction piping where the following requirements are met: (4) Suction strainers shall be permitted to be installed in the suction piping where required by other sections of this standard. 6.3.2 Where necessary, the following fittings shall be provided: (5) Pipeline strainer _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org<https://urldefense.proofpoint.com/v2/url?u=http-3A__lists.firesprinkler.org_listinfo.cgi_sprinklerforum-2Dfiresprinkler.org&d=DwMFaQ&c=OgZOSER8c1RLeytEexU279Q2qk0jVwkrOdYe5iSi-kk&r=6qYbbLx8x0UrMujmEGNoh-2hzoFD2d1EB5d2sQF0_OI&m=tvIzK3RY_-Gey4GF4i5zgndplGh8OzDLxzAzKoRwcvM&s=ePScgnT1ZZ0sapsqAMqfavteZPOUee_wLKu5LYYpV-U&e=> ________________________________________________________________________________________ NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. 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