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HI IN MY COMMERCIAL PROJECT THAT HAS 1" BFP ON THE SERVICE LINE, WHAT KIND OF PIPE-MATERIAL SUGGESTED TO USE FOR DISCHARGING BACK FLOW WATER TO AN APPROVED LOCATION???

HI I HAVE TO PROVIDE ELECTRICAL TANKLESS HOT WATER HEATER, ON-DEMAND FOR AN DELI-BAKERY IN LA, CA (A 3-COMP SINK+MOP SINK+ HAND SINK) FOR DPH, I HAVE TO PROVIDE SIZING-VERFICATION ANY GUIDANCE, ANY REFERRAL .... THANK YOU

hi Beside of type L copper to supply CW to a multiunit , 3 story apartm in los Angeles, what other material , flexible can be used, and yes approved by the code ?????? Thank you

HI, I AM LOOKING FOR 1-1/2" SUB WATER METER FOR MULTI UNIT APARTMENT IN LOS ANGELES APPROVED BY LADWP ANY BODY KNOWS BRAND, MANUFACTURER????? THANK YOU

HI, FOR SIZING STORAGE WATER HEATER, WHAT IS THE HOT WATER DEMAND FOR COMMERCIAL KITCHEN SINK WHERE CAN I LOOK UP FOR IT?????? THANK YOU

Hi I want to install gas fired recess mounted mini space heater in kids room; can supply that through flexible 1/2" gas pipes tapped from the existing rigid gas line located in crawling space ????? Thank you

Hi, i did copper water supply and drain with ABS in crawling space of my house, the result, water spraying from soldered connectors in various locations how can I fix it , and recommendation??? can I use epoxy to fix??? Thank you

Hi, i did copper water supply and drain with ABS in crawling space of my house, the result, water spraying from soldered connectors in various locations how can I fix it , and recommendation??? Thank you

hi The los Angeles Environmental Dept wants filtration device on main bldg drain line that leave the building to city sewer in a new plant nursery yard (to avoid dirty water entering to the city sewer) ANY RECOMMENDATION ?????

Hi again, The City correction say that, "a clean-out required at end of 3" bldg drain run more than 5 feet from main" what does it mean ????, where in code book ???

Hi, Can you help me with this corrections from Glendale, CA city I can not understand well Thank you

HI WHAT IS APPOXIMAT./ESTIMATED PSI LOSS OF GAS TANKLESS WATER HEATERS ????? THANK YOU

HI DO THE GREASE TRAP DISCHARGE CONNECT TO THE BLDG DRAIN ??/ THANK YOU

Hi, is the solenoid at the water heater in a dentist office for shut -off the the whole , main cold water supply entering to that space or, only for shut-off the water supply to dental operation chairs ???????????

Hi, What do expansion tanks do at tank less water heaters???

Hi for my house, I was thinking to assemble , install a WC with a separate tank hidden in high elev. may be in 9' high cabinet; 2" rigid pvc running down from that tank to the bowl through a 2" sealable whole in the w.c is it possible???/ Thank you

hello, I always put a BFP in water supply of tall building, 3- story and up What is concept- rule to determine....? T

Hi, Can you help me to find charts that show, equivalent diameter of corrugated stainless steel gas pipes (SCCT) to inches. NFPA-54 , 6.2 shows the diameter only. Thank you

Hi how can OI verify if the existing 100-gallon water heater is sufficient for the 16-unit apartment building with 900 sq.ft, 1-bed rm typical units ?????? THANK YOU

Hi [B]can explain me more about Residual pressure loss in Hydraulic calc for water supply Thank you:confused: