Jadnashua
Retired Defense Industry Engineer xxx
He was referring to a pump to keep hot water in the area. Doing this on its own might solve your problem, since unless you have a dedicated return line, the thing pushes water from the hot line into the cold line, which eventually runs back to the WH tank. The system consists of a pump, a check valve, and a control that turns the pump on or off. It is used to keep the water in the hot line from cooling off in between uses. If it doesn't have a dedicated return line, it warms up the cold water , and that might be enough on its own to keep the toilet from sweating. If it wasn't and you had one installed, you'd still gain from having hot water when you wanted.
Another alternative is to put a small tank under the sink to provide hot water quicker there; then, you don't have to keep circulating water around. It would be insulated better than your pipes, and you'd have a fairly constan hot water source.
Another alternative is to put a small tank under the sink to provide hot water quicker there; then, you don't have to keep circulating water around. It would be insulated better than your pipes, and you'd have a fairly constan hot water source.