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I do maintenance on a small apartment building. Seven apartments are heated from a single boiler, with temperature control by Taco zone valves. While painting an unoccupied apartment I noticed it was warm, even though the thermostat was turned down. I felt the baseboard heaters in several...

I'm re-doing a basement bathroom built in 1950. It has a drum trap, in a concrete floor. Is it a good idea to go ahead and replace it with a p-trap? Should I use brass, or PVC for this application? It is in a corner, and after the tub is in place and the tiling re-done there is no access to...

I am planning to move the kitchen sink to an adjacent wall. My question is about routing the drain. To tie in to the existing drain connection in the wall, I will have to run the plumbing after the trap 90 degrees, about 3 feet behind a cabinet, another 90 degrees, then about 12 inches to...

The installation manual with my new dishwasher says that the connection to the sink drain must be a minimum of 18 inches above the floor. So, the drain line goes up a minimum of 32" and then drops down to the tee connection at the sink drain. Can anyone explain to me why the 18" minimum above...

Trying to figure out the best way to drain a new dishwasher in a kitchen island where there is no sink. --can I put an air gap underneath the counter? Don't want it through the counter for appearance reasons, and since there is no sink, why not? --can I put the p-trap in the floor between the...

I think I know the answer to this one, but want confirmation. I can run pipes, but do not know code requirements. I am renovating my kitchen and want to move the sink. The new location has good access to install the new vent stack, but in order to install the drain in the wall, I would have...