Plumbing
 

Needing to calculate how much water I should account for to drain 40' of 2" pipe, I haven't found a formula yet. There are no cutoffs between cold water/steam units that have bad valves. This "house" is a nightmare lol 8)


Trying to replace valves that failed and were bypassed, designated cold water pumps are fed from heat exchangers, three pipe to four pipe...omg I'm too green for this!!!

What we need is a math genius-----flying guess? About 3 buckets full----let's see that a mathematician has to say---

A little over 6.5 gallons

I'd take an evilt genius with a floating cork at this point

Thanks canucker, do you have the formula handy?

there is 231 cubic inches in a gallon

Volume of a cylinder is pi*r(squared) * height (or, in this case, length).

So, for a 2" diameter pipe, the volume would be 3.14 * 1 * 480 = 1507 cubic inches = 6.5 gallons.

For unit conversion, Google is your friend. Just google "1507 cubic inches in gallons" and it'll spit out an answer.

volume of a sphere is pi (3.14) r squared times height or length

My phone shows no posts by me, but I appreciate everyone!!!!