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Baring codes and all that they bring with them, let me add my three cents. From a complete installation view. I have always used threaded pipe and fittings for my drains, relief lines et cetera. And always will. A few years back I was on a project where the foreman wanted to use grooved...

The laser pointer video was quite entertaining. It wouldn't last two days on the project I am on now without twenty four hour security. Tools and copper seem to sprout legs these days. If we all agreed, we would be Communists. - Me

Jigjag, by landing valve, do you mean a floor system control valve, or fire department hose valve? After many years of repair and service of multi-floor buildings, if you have to shut the whole thing down to fix one small problem, that's the way it it is. I concur with spkreng as to the fire...

Ahhhh NJ1, sounds like you've done it a few times yourself. Of course he could always resort to the most common method. Spot the heads on the print and say it is now the fields problem. We always figure it out. If we all agreed, we would be Communists. - Me

Ryan thank you for recognizing greatness. I have heard that many times over the years. [wink] I had a similar situation years ago. Plumb bobbed that one (last time I waste my time, no ceilings installed yet, working off RCP). I agree that a laser is helpful and in some applications a necessity...

I have ran into this a few times recently. My attitude is if there is no constant supply then isolation valves are not necessary. Four out of five AJC's agreed. Ultimately it is up to the Authority Having Jurisdiction. If we all agreed, we would be Communists. - Me

One of the first things I learned as a young helper, was that it was VERY IMPORTANT to relieve all of the trapped air through the inspectors test while filling the system. Not only to stop water hammer, but to cut down on false alarms. I don't recall a mention of increased pressure, but after...

How much does one of those cost?! In my seventeen years, we always used a "whirly bird" (a piece of uni-strut or wood 23.75 inches long to fit into a 2x2 tile, a couple of nuts, washers, and a piece of all thread rod at the center point. Total cost: Free picked up of the floor. Value...

Exxit, You are the man. One star for you. I will share this valuable tool with my co-workers. Thank you so much. If we all agreed, we would be Communists. - Me

Is it possible to import a layout tab from another drawing? It would save us a great deal of time if we could so we would not have to fill out all of the info from our template (i.e. Job Name, Sheet x of x, Drawn By, all the field and design notes, etc.). If we all agreed, we would be...

Good luck Cass. I'm sure something will turn up for you. In the mean time, enjoy the vacation. If we all agreed, we would be Communists. - Me

"Attached is a pic of another glycol loop where the expansion tank failed." lightecho (Mechanical) If this is a glycol loop, where is the fill cup? I suppose that you could use the 1/2" ball valve after the expansion chamber to fill the system with antifreeze. Also shouldn't there be another...

Looks like the sprinkler head may be slightly obstructed from developing a full spray pattern.

I would red tag it; however I am not in inspections nor plan review. I do have a few years in the field, so maybe I can help with fix. Rip out some sheetrock and run some exposed pipe. That is why God invented paint. Of course you can't tell what is there to tap into until you do take out some...

The specs say the most current editions and associated references. NFPA 13, 14 & 20. It is also being looked at by a PE then to the national hotel chains Fire Protection Specialists. They have even made me recalculate my standpipes putting the additional 250 at the outlet of the FHV at the top...

I have a standpipe on the intermediate landing of each of the two stairs with a fire hose valve per the AHJ. Can I eliminate the roof manifold in the stair that accesses the roof by providing an additional FHV at the top of the standpipe on the intermediate landing? This would save me from...