Pipe sizes are based on peak flow, the maximum flow expected in the system. We need to know the function of the tank in order to help with sizing parameters. Is it an elevated gravity tank being fed from a water supply? If so, then the make-up flow rate to the tank vs the hourly usage need to...
I was just reviewing the IPC for water heater catch pan drains and found this:
504.6(5) says the relief valve may "discharge to the floor, to the pan serving the water heater or storage tank...."
Comentary Figure 504.7(1) says "relief valve pipe terminating into a safe pan is prohibited"
Has...
I do have other hot water requirements and the first thing I did was size the storage for the additional load of the emergency equipment. However, the architect is not giving me any floor space for water heating even though this is a huge warehouse/office/processing application. She wants me...
Has anyone any experience using gas fired instantaneous water heater with ASSE1071 mixing valve serving combination Emergency Shower/Eye-face wash? I need tepid water between 60 and 90 degrees F final temperature at 23 gpm. It seems most of the tempering valves I have seen require fairly high...
I was just wondering how many companies still have good insurance and how many have gone the way of Obamacare. I am in a small MEP firm in Maryland. Our health insurance just changed, our premiums went up and our coverage went way down. I have maximum out of pocket expenses of $12,500 per...
Hello, I have separate water and fire services to a building, each with a double check valve assembly bfp. The inspector is requesting strainers to be installed before the BFPs. We do not have space for additional appurtenances at this time, the equipment is installed. Is there some code...
I think my question is generally being misunderstood.
The worst case for designing an areawell drainage system which is being pumped (nothing to do with primary/secondary issues) is the 15 minute storm. In this event, for the area I have involved, there would be 310 gpm peak flow using a 15...
I have a job with block walls, the architect is giving me a hard time about chases. What is the concensus regarding installation of piping within hollow core block? Is it allowed (IPC)? Does it have to be installed as the wall goes up? Do metallic pipes need to be coated?
Thanks
Leed Commercial Interiors ref. guide warns against using flow reduction on kitchen sinks used for pot filling, dish washing, etc. They also suggest installing pot fillers for that use, whereas flow reduction on the sink faucet still counts toward points. I just designed a commercial office...
The National Standard Plumbing Code requires main roof drains to be sized for 1 hour 100 year storm. The secondary drainage must be sized per the 15 minute 100 year storm, which is about three times as much flow.
If there is an areawell with drains discharging to a pump in the basement, should...
