G. C. Woods, Lawrence, Kan., writes:

" How can I secure a circulation to the sink and washbasin from the boiler shown in the accompanying sketch (Fig. 1)? Doors interfere with running the circulation pipe along the wall level with the water-back in the range. Can I run the circulation pipe along the ceiling and down under the floor and then come up to the range, which is about 2½ feet high? Will this work right? How shall I run a circulation pipe to the laundry tubs ? I have your book, ' Plumbing Problems,' but'see nothing like this in it."

[The arrangement you have shown in your sketch will not work at all. Carry your hot-water pipe around the wall above the boiler as shown, dropping to the fixtures and below them for return circulation below the floor. It is very seldom that return circulation is wanted for laundry tubs. They will draw hot water pretty quickly any way, but if you think it important to have it, then connect them up on the same principle, supply above and return below, all as shown in Fig. 2, making it as short a vertical distance as possible for the return to rise into the bottom of the boiler.]