Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
If our community has helped you, please consider making a contribution to support this website. Thanks!

Lifting Condensate Question--Math

Options
A condensate return system is so installed as to provide for the direct return of condensate to the boiler by means of a high level receiver and a three-valve lifting trap of the tilting type.

The recommended position of this lifting trap with respect to the boiler water line, when the boiler is operating at 30 lbs. per sq. in., is MOST NEARLY_________ the water line.

A) 3 ft. above

B) 2 ft. above

C) 2' 6" above

D) 2" below

I know the correct answer is A) 3 ft. above, but does anyone know what formula was used to get this answer?
This discussion has been closed.