Water, water everywhere!

So it's day 3 in the Big Brother household and we see the housemates all trying to sort out who's going first in the shower .....

Well we don't want that do we? So what do we need to do to avoid that from happening fellow property developers? That's right - plan, measure, execute! Ensure that all the showers, baths, taps and other water outlets will be able to be on simultaneously and fully without so much as a drip of a loss of pressure. THAT is perfection in the world of plumbing. One that can only be a property developer's dream, executing the perfect pressure and flow to allow all inhabitants of any accommodation block equal access to water at any time of day or night.

So today was the day of the water pressure discussion. It has to happen in each and every development ever done. In fact, ignoring or avoiding THE waterworks discussion can, just as at the doctors, make you feel you as if a vitally important detail in your overall examination has been missed.

When researching water pressure (and by the way only water pressure geeks will truly be able to relate to the power of the pressure here) you need to find useful and reliable websites to guide and teach you. One I came across today was this one: http://inspectapedia.com/water/Water_Pressure_Measure.php

A SUPER helpful website with what looked to me like questions taken from my 'O' level maths exam.
For example (and I quote):

"Example of variation in building water pressure:

• Incoming building water pressure is 80 psi at the street-side of the pressure regulator.
• The pressure regulator is set to 60 psi and installed on 1/2" diameter building water supply piping
• The building has four apartments and in each apartment simultaneously people are running multiple plumbing fixtures, drawing water out of the system so fast that ...
• The dynamic building water pressure drops to 20 psi when all of these fixtures are operating. Even though the pressure regulator is set to 60 psi, when water flow in the building exceeds the capacity of the incoming water main to deliver water at that pressure, the in-building water pressure will drop to a lower number." 

QUESTION: If Mary has a shower in apartment 2, and Tom in apartment 3 is making a cup of tea, whilst Frank from apartment 5 is washing his car,  what will the water pressure be for Jane when she comes back from work and wants to have a bath?  And what is the solution to her low pressure problem? 

 (That'll keep you guessing my friends ... the answer is at the end of this section). 

Yes, the world of water pressure creates questions like this in many of the great plumbing minds of this industry. And that is why a water pressure (and flow, mustn't leave old flow out) measurement needs to take place early on in your development master plan. We are having ours officially measured in two day's time. And hopefully it will be good enough to pass our ordinary level property developers exam. 

PS the answer is A solution to this problem may be the installation of 

a WATER PRESSURE BOOSTER PUMP.